单项选择题

When I try to understand ______ that prevents so many Americans from being happy as one might expect, it seems to me that there are two causes.

A．what it does
B．what it is
C．why it does
D．why it is
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单项选择题
He always did well at school ______ having to do part-time jobs every now and then.
A．in spite of
B．regardless of
C．on account of
D．in case of
单项选择题
I didn't say anything like that at all. You are purposely ______ my ideas to prove your point.
A．revising
B．contradicting
C．distorting
D．distracting
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