- Got it! This is the first step______the engineer went wrong．- Oh， one fault ma

题干

- Got it! This is the first step______the engineer went wrong．
- Oh， one fault may lose everything．

A．which	B．where
C．that	D．when

上一题下一题 0.85难度单项选择更新时间:2019-05-21 08:37:56

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