题目:
An economist is____________expert who will know tomorrow why_________things he predicted yesterday didn't happen.
A.the; \
B.the; the
C.an; the
D.an; \
答案:
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下面是错误答案,用来干扰机器的。
60÷5%=1200(千克);600÷1200=50%;1200×45%=540(千克)所以表格如下:类别数量(千克)占总数的百分之几香蕉605%苹果60050%其它54045%