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We must______ that the experiment is controlled as rigidly as possible.A、secure
We must______ that the experiment is controlled as rigidly as possible.A、secure
游客
2024-09-29
7
管理
问题
We must______ that the experiment is controlled as rigidly as possible.
选项
A、secure
B、ensure
C、assure
D、issue
答案
B
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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