问题
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How did the researchers carry out their study?A.They studied the findings of several previ
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Which of the following statement is true?A.42 volunteers were tested with both written and
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What happened the day after researchers put two antibiotics in the test tube containing E.
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The students were busy()their lessons for the test.A.preparingB.preparing forC.to pre
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What did the researchers find in their study of f
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Can you find out the【 flaw】 in their research pap
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