You can get the best result ______you carry out the experiment under the desired
题型：不详难度：来源：
You can get the best result ______you carry out the experiment under the desired conditions.| A．what if | B．even if | C．only if | D．as if |
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答案
| C |
解析
试题分析：考查连词：A. what if倘若…又如何？B. even if即使，C. only if只有如果…，D. as if好像，句意：只有你在需要的条件下做实验才能得到最好的结果。选C。 |
举一反三
| If you want to live a happy life, you’d better learn to accept life _____it is.. |
A British official said that_____ this impractical policy could be changed , the future for Britain was indeed dark.| A．unless | B．when | C．if | D．until |
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Usually pilots need about a decade of experience _______ they can be promoted to captain.| A．after | B．before | C．then | D．when |
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