【单选题】 We must______ that the experiment is controlled as rigidly as possible.
A.secure
B.ensure
C.assure
D.issue
网考网参考答案:B
网考网解析:
此题考查动词词义。ensure 确保。issue为无关干扰词,发行:分配。
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【单选题】 We must______ that the experiment is controlled as rigidly as possible.
A.secure
B.ensure
C.assure
D.issue
网考网参考答案:B
网考网解析:
此题考查动词词义。ensure 确保。issue为无关干扰词,发行:分配。
查看试题解析出处>>
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