Question

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．a(chǎn)s if

Answer 1

C

試題分析：考查連詞：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：只有你在需要的條件下做實(shí)驗(yàn)才能得到最好的結(jié)果。選C。