在伦敦外汇交易市场上,某日£1=US$1.5902-1.5893,现在A贸易商欲从花旗银行伦敦分行用英镑购入100万美元,应使用1.5902的汇率()。
参考答案:错
31.—Can I smoke here?
—No.On no condition ______ in the museum.
A.is smoking permitted
B.smoking is permitted
C.was smoking permitted
D.smoking was permitted
什么是水击事故?蒸汽管道发生水击的原因和处理方法?