2. 专升本
  3. AIf the experiment succeeds or fails, it will Bprovide us with Cvaluable experience, which is essential to Dimproving our future

AIf the experiment succeeds or fails, it will Bprovide us with Cvaluable experience, which is essential to Dimproving our future

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问题 AIf the experiment succeeds or fails, it will Bprovide us with Cvaluable experience, which is essential to Dimproving our future work.
选项 A、 
B、 
C、 
D、 
答案A
解析 应改为Whether。“whether…or…”是固定搭配。if不能引导主语从句。
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