【題目】I don't think the experiment is __________ failure. At least we have gained __________ experience for future success.

A. /;the

B. a；the

C. /；/

D. a；/

【答案】D

【解析】afailure常用來表示“一個失敗的人或一件失敗的事”，這里指“一次失敗的實驗”；experience作“經(jīng)驗”解時是不可數(shù)名詞，前面通常不用冠詞。

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