题目内容
Since time is______ in hours, the value of our lives is equivalent to the sum of every hour we spend.
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Social scientists have long realized that human behaviors are too complex for us to rely solely on______ data to understand.
The pharmacist was invited last year to attend the discussion on whether the sour substance could be _________ determined by computer.
From a behaviorist's point of view, language acquisition derives from the relationship of ________ and response.
请预习第2单元课文A : Panic at the dinner.
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