问题
选择题
I'd rather not comment _____ their decision, for I'm not really familiar ______ what they do. [ ]
A. on; to
B. on; with
C. in; to
D. in; with
答案
答案：B
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I'd rather not comment _____ their decision, for I'm not really familiar ______ what they do. [ ]
A. on; to
B. on; with
C. in; to
D. in; with
答案：B
sinl00πt（V），则下列说法中正确的是（ ）
V