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

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- [{"text": "", "options": [{"option": "Russian\u00a0", "answer": false}, {"option": "Italian\u00a0", "answer": false}, {"option": "Carolingian\u00a0", "answer": true}, {"option": "Roman", "answer": false}], "type": "question", "database_type": "qb", "university": "ju", "year": "2019-20", "unit": "c", "shift": "4", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "Which was the earliest period of rebirth mentioned?\u00a0", "full_question": "All of the following are mentioned as characteristics of period of renaissance EXCEPT?", "mark": 1.0, "answer": "one", "explanation": "All of the following are mentioned as characteristics of period of renaissance EXCEPT?[E-40,\u00a0JU-C4 : 2019-20]"}, {"question": "", "options": [{"option": "Improving on the basic principles of past cultures", "answer": true}, {"option": "Trying to do everything as the ancients had done ", "answer": false}, {"option": "Helping to maintain Roman culture at any cost\u00a0", "answer": false}, {"option": "Tearing down existing buildings and usingRoman architectural techniques of new ones.", "answer": false}], "type": "question", "database_type": "qb", "university": "ju", "year": "2019-20", "unit": "c", "shift": "4", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "What does the word \"renaissance\" mean in the context of these three civilizations?", "full_question": "The main idea of this passage is that__", "mark": 1.0, "answer": "one", "explanation": "The main idea of this passage is that__
- [{"text": "The author thinks that true learning will lead to ___.The gypsies are people who ____.Which of the following best describes the author\u2019s atitude towards learning?The gypsies like to live in tents because ____.The English took them for Egyptian\u2019s means-Attitude towards the gypsies ____.
- [{"text": "Novelists judge an individual's mental characteristics by-[E-40, DU-A : 2018-19]"}, {"question": "", "options": [{"option": "the detailed study of the shape and size of the cranium as a supposed indication of character and mental abilities", "answer": true}, {"option": "the art or practice of supposedly interpreting a person's character or predicting their future byexamining the palm of their hand", "answer": false}, {"option": "the study of the movements and relative positions of celestial bodies interpreted as having an influence on human affairs", "answer": false}, {"option": "the study of the shape and features of a person's facial expression", "answer": false}], "type": "question", "database_type": "qb", "university": "du", "year": "2018-19", "unit": "a", "shift": "", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "Phrenology is-", "full_question": "A synonym of 'accentuate' is\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0.", "mark": 1.0, "answer": "one", "explanation": "A synonym of 'accentuate' is\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0.[E-33, DU-A : 2018-19]"}]
- 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.What is the full form of 'Qubit"?