[单选题]建筑工程施工现场室内非埋地明敷主干线距地面高度不得小于( ). A.2.2M B.2.3M C.2. M D.2.5M.
参考答案:D
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第1题: [单项选择]Professor Taylor' s talk has indicated that science has a very strong ______ on the everyday life of non-scientists as well as scientists. A. motivation B. perspective C. impression D. impact 参考答案:D 答案解析:[考点] 词义辨析。 [解析] 本题测试名词辨异。A.motivation动机;B.perspective前景;C.impression印象;D.impact影响。句意明显暗示对D项的选择。