美国《1950年收入法案》前激励方式:奖金、红利,之后的激励方式()。
A.奖金
B.红利
C.股票期权
D.快速提拔
参考答案:C
Nearly all educators believe that a challenging situation can often _______ the best qualities of a person.
A.bring out
B.bring forward
C.bring about
D.bring up
血中Hb含量低于多少时,即使重度缺氧,亦难发现发绀()
A.<50g/L
B.<60g/L
C.<70g/L
D.<80g/L
E.<90g/L