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The chemist asserted that —

A. he has conducted the test the previous day

B. he conducted the test the previous day

C. he did conduct the test the previous day

D. He had conducted the test the previous day

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সঠিক উত্তরঃ D. He had conducted the test the previous day

Explanation:

[{"text": "social environment.What does the second sentence do?", "mark": 1.0, "answer": "one", "explanation": "Social studies focus on the complexity of our\u00a0the social sciences.Select appropriate phrase and idiomsSelect appropriate phrase and idioms(P) by anyone and admit(S) be violated", "mark": 1.0, "answer": "one", "explanation": "It is a rule-\u00a0(R) of no variation
In "Under the greenwood Tree" The Tree refers to---
The writer tries to the claim of Rajshahi as being a city of education.
The brain of a computer is ——
[{"text": "11-13:Why is War?", "mark": 1.0, "answer": "one", "explanation": "Why is War?[E-40,\u00a0JU-C1 : 2012-13]"}, {"question": "What we don't know about war?
Applauding was cited as an example of -
According to your English text, Polynesian fire walkers
What occurred shortly after the Revolution?
Throughout history, the search for salt has played an important role in society. Where it was scarce, salt was traded ounce for ounce with gold. Rome′s major highway was called the via salaria, that is the Salt road. Along the road, Roman soldiers transported salt crystals from the salt flats at Ostia up the Tiber River. In return, they received a salarium or salary, which was literally money paid to soldiers to buy salt. The old saying ‘worth their salt′. Which mean to be valuable derives from the custom of payment during the Empire.Salarium is a Latin Word that means−
Its main purpose is to get you excited about science by doing it rather than simply learning about it. What does 'it' refer to?
Answer the question based on what is stated or implied in the statement or passage. With varying success, many women around the world today struggle for equal rights. Historically, women have achieved greater equality with men during periods of social adversity - revolution, war, and the rig ours of pioneering in an undeveloped land the essential element that improved the status of women was a shortage of men. We can conclude that-
[{"text": "The coconut is an unusual food for many reasons. It is technically a seed, produced by the coconut palm tree, and as such is one of the largest edible seeds produced by any plant. Its unusual contents also make it unique in the seed word-the interior consists of both \"meat\" and \"water\". The meat is the white pith with which we are all familiar, as it is used extensively for cooking and flavourings; the coconut water is a white liquid that is very sweet and thirst-quenching.Yet the coconut is also useful in many ways that have nothing to do with food. Coconut oil is used for cosmetics, medicines, and can even be used in place of diesel fuel. Dried coconut shells are used in many countries as a tool, such as a buffer for shining wood floors. The shells are also used for shirt buttons, and are commonly found on Hawaiian clothing. They are even used for musical instruments and bird houses! And all these are only some of the uses found for the coconut fruit. The coconut palm tree, which produces the nut, also produces countless useful items. It's no wonder that the coconut palm has been called \"the tree of life\"", "type": "text_block", "database_type": "", "university": "", "year": "", "unit": "", "shift": "", "subject": "", "chapter": "", "topic": ""}, {"question": "", "options": [{"option": "of It's pale color", "answer": false}, {"option": "it resembles a face", "answer": true}, {"option": "it is round", "answer": false}, {"option": "of its smell", "answer": false}], "type": "question", "database_type": "qb", "university": "ju", "year": "2020-21", "unit": "f", "shift": "3", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "The coconut earned the nick name \"ghost\" because__.", "full_question": "Which of the following is not a use for the coconut palm?", "mark": 1.0, "answer": "one", "explanation": "Which of the following is not a use for the coconut palm?[E-40,\u00a0JU-F3 : 2020-21]"}, {"question": "", "options": [{"option": "the Portuguese thought it cured disease", "answer": false}, {"option": "nearly every part of the tree is useful to mankind.", "answer": true}, {"option": "it grows near the Equator.", "answer": false}, {"option": "of its green color.", "answer": false}], "type": "question", "database_type": "qb", "university": "ju", "year": "2020-21", "unit": "f", "shift": "3", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "The coconut palm is sometimes called \"the tree of life\" because", "full_question": "What is the main focus of this passage?", "mark": 1.0, "answer": "one", "explanation": "What is the main focus of this passage?
Which title would be the most appropriate one for the passage?
[{"text": "A port must be distinguished from a harbor. Harbor is a physical concept, a shelter for ships; port is an economic concept, a center of land-sea exchange requiring good access to a hinterland. Poor harbours can be improved with breakwaters and dredging if there is a demand for a\u00a0\u00a0Port cities become industrial, financial and political capitals because of their water connections and the urban concentration drawing towards it railways, highways and air routes. Primarily water transport means cheap access. Many of the world's biggest cities, but they e.g., London, New York began as ports-that is, with land-sea exchange as their major function - have since grown disproportionately in other respects so that their port functions are no longer dominant.46. 'Hinterland' means-\u00a0", "mark": 1.0, "answer": "one", "explanation": "46. 'Hinterland' means-\u00a0[E-40,\u00a0JU-F1 : 2018-19]"}, {"question": "", "options": [{"option": "The impetus it provides to the economy", "answer": false}, {"option": "Cosmopilitisation of the area.", "answer": true}], "type": "question", "database_type": "qb", "university": "ju", "year": "2018-19", "unit": "f", "shift": "1", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "48. What\u2019s the biggest contribution of a port city?", "full_question": "49. What is the main contributing factor behind the lessening of importance of the port functions of the major port cities?", "mark": 1.0, "answer": "one", "explanation": "\u00a0Land-sea exchange function has become dominant.", "answer": false}, {"option": "Maintenance of the port facility is too expensive.", "answer": false}], "type": "question", "database_type": "qb", "university": "ju", "year": "2018-19", "unit": "f", "shift": "1", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "49. What is the main contributing factor behind the lessening of importance of the port functions of the major port cities?", "full_question": "The word 'microcosm' is the last paragraph implies-\u00a0", "mark": 1.0, "answer": "one", "explanation": "\u00a0The composition of the port city\u00a0", "answer": false}, {"option": "The word 'microcosm' is the last paragraph implies-\u00a0
[{"text": "The phrase 'over and the over again' means-\u00a0", "mark": 1.0, "answer": "one", "explanation": "The phrase 'over and the over again' means-\u00a0[E-40,\u00a0JU-C6 : 2012-13]"}, {"question": "", "options": [{"option": "language learning\u00a0", "answer": false}, {"option": "music of word\u00a0", "answer": false}, {"option": "language planning\u00a0", "answer": false}, {"option": "power of words\u00a0", "answer": true}], "type": "question", "database_type": "qb", "university": "ju", "year": "2012-13", "unit": "c", "shift": "6", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "In this passage, the author concentrates on-", "full_question": "The word suggestive means-", "mark": 1.0, "answer": "one", "explanation": "The word suggestive means-[E-40,\u00a0JU-C6 : 2012-13]"}, {"question": "", "options": [{"option": "undermine\u00a0", "answer": true}, {"option": "emphasize\u00a0", "answer": false}, {"option": "highlight\u00a0", "answer": false}, {"option": "stress", "answer": false}], "type": "question", "database_type": "qb", "university": "ju", "year": "2012-13", "unit": "c", "shift": "6", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "Find out the antonym of 'reinforce':\u00a0", "full_question": "The passage is an example of-", "mark": 1.0, "answer": "one", "explanation": "The passage is an example of-
Which one of the following is a word with a pejorative prefix?
[{"text": "Read the Following passage carefully and answer Questions (14 to 19):]Various research centers are studying identical twins in order to discover the 'heritability' of Behavioral characteristics that is the degree to which a trait is due to genes \"nature\" instead of environment. They have reached some starling conclusions. One study found, for example, that optimism and pessimism are both very much influenced by genes, but only optimism is affected by environment as well. According to another study, genes influence our coffee consumption, but not consumption of tea. Anxiety\u00a0seems to be 40 to 50 percent heritable. Another study tells us that happiness does not depend much on money or love or professional success; instead, it is 80 percent heritable! Among the traits that appear to be largely heritable are shyness, attraction to danger (thrill seeking), choice of career and religious belief.[E-40, DU-D : 2012-13]"}, {"question": "", "options": [{"option": "behavior", "answer": false}, {"option": "environment", "answer": true}, {"option": "genes", "answer": false}, {"option": "characteristics", "answer": false}], "type": "question", "database_type": "qb", "university": "du", "year": "2012-13", "unit": "d", "shift": "", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "which of the following competes with nature in influencing humans?", "full_question": "what is the main topic of the paragraph?", "mark": 1.0, "answer": "one", "explanation": "what is the main topic of the paragraph?[E-40, DU-D : 2012-13]"}, {"question": "", "options": [{"option": "Anxiety is more heritable than happiness", "answer": false}, {"option": "Anxiety is as heritable as happiness", "answer": false}, {"option": "Anxiety is less heritable than happiness.", "answer": true}, {"option": "Happiness is less heritable than anxiety.", "answer": false}], "type": "question", "database_type": "qb", "university": "du", "year": "2012-13", "unit": "d", "shift": "", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "which of the following is true?", "full_question": "In line 3, startling is nearest in meaning to", "mark": 1.0, "answer": "one", "explanation": "In line 3, startling is nearest in meaning to
The noun of the word 'virtuous' is:
'There is no one so poor as a wealthy miser'. This is an example of -
Quantum computing, a rapidly emerging technology, harnesses the properties of quantum mechanics to store data and perform calculations using qubits rather than regular binary bits. Quantum algorithms take a new approach to numerous sorts of complex problems by creating multidimensional spaces linking data points. Our classical computers, even super computers can't do this. Quantum computers might contribute greatly to security, finance, aeronautics, bioinformatics, digital manufacturing etc. Real quantum hardware, a tool scientists only began to imagine three decades ago, is now available to millions of developers. Powerful super conducting quantum processors are driving towards such a computing speed and capacity that they can potentially change the world.'Quantum computers might contribute greatly to _______. In the passage, what does this expression mean?

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The chemist asserted that —