对项目的换汇节汇成本分析主要计算的指标有()。
A.财务外汇净现值
B.财务外汇平衡能力
C.财务换汇成本
D.财务内部收益率
E.财务节汇成本
参考答案:A, C, E
. The silence of the library ___ only by the sound of pages being turned over.
A.has been broken
B.breaks
C.broke
D.was broken
Why is Tom silent? Why doesn't he ______ us _____ the conversation?[ ]
A. join in; for
B. join; for
C. join; in
D. attend; in