问题
选择题
____ you ask many different questions will you acquire all the information you need to know．
A．If only
B．As far as
C．So long as
D．Only if
答案
答案：D
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____ you ask many different questions will you acquire all the information you need to know．
A．If only
B．As far as
C．So long as
D．Only if
答案：D