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问题
单项选择题
按我国现行规定，安装工程间接费取费基础为______。
A．预算直接费
B．预算人工费
C．预算人工费加机械费
D．预算机械费
答案
参考答案：B
选择题
Did you predict that many students _____ up for the dance competition?
A. would sign
B. signed
C. have signed
D. had signed
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选择题
________,Valentine's Day is celebrated.
A. On May l st
B. On February 14th
C. On June l st
D. On September l st
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