空气呼吸器按要求佩戴完毕后,应深呼吸几次,当呼吸顺畅后,方可进入作业区。
参考答案:对
Everybody said it was an ideal marriage; no one had ever known _____ couple.[ ]
A. the happier
B. a happier
C. a happy
D. the happiest
某公司普通股每股市价110元,筹资费用率为4%,第一年末发放股息10元,预计以后每年增长5%,计算普通股资金成本率为( )。
A.15.40%
B.17.21%
C.14.47%
D.5.21%