在下述何种情况下，挤出效应可能最大的是（）
A. 货币需求对利率具有敏感性，私人部门支出对利率也有敏感性
B. 货币需求对利率具有敏感性，私人支出对利率没有敏感性
C. 货币需求缺乏利率敏感性，私人支出也缺乏利率敏感性
D. 货币需求缺乏利率敏感性，私人支出很有利率敏感性
It's really dangerous to work on the roof. ___, you should take care of yourself.
A. Therefor
B. However
C. Otherwise
D. Yet
She sold her house ___ she can't help regretting it.
A. or
B. for
C. but
D. so
His children are well-behaved, ___ those of his sister's are very naughty.
A. and
B. whereas
C. thus
D. so
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