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Anyone in the lab has to      the following dos and don’ts.
A.observeB.consultC.recognizeD.direct
A

试题分析:句意:实验室的任何人都要遵守下面的该做的,和不该做的。四个选项的含义分别是 :A.observe观察,庆祝,遵守,B.consult咨询,C.recognize认识,识别,D.direct指导,根据句意选A。
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