12．Anyone in the lab has to      the following dos and don'ts．（　�。�
A．observeB．consultC．recognizeD．direct

分析 實驗室的每個人都要遵循下列的規(guī)則．

解答 答案：A
observe觀察，遵循；consult咨詢；recognize辨別出，direct指導．句中dos and don'ts是表示規(guī)則，該做的和不該做的，當然是遵循這些規(guī)則．故選A．

點評 動詞短語是一個比較難的語言點，搭配較多，用法靈活．學習時，要注意積累．尤其是相似或相近的用法，要注意區(qū)分和掌握．

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