问题描述：
9,when the ship lost its engine power,the crew found themselves at ( ) of the wind.
A.rate B.cost C.moment D.mercy
10,if you are unable to come to the interview,for ( ) reason,you should inform us ahead of time.
A.however B.somewhat C.whatever D.no matter.
帮我解释下相关的语法啊.
A.rate B.cost C.moment D.mercy
10,if you are unable to come to the interview,for ( ) reason,you should inform us ahead of time.
A.however B.somewhat C.whatever D.no matter.
帮我解释下相关的语法啊.
问题解答：
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