潮气量为500ml,呼吸频率为14次/分,无效腔气量为150ml,则肺泡通气量
A.2L/min
B.5L/min
C.4.2L/min
D.4.9L/min
参考答案:D
That is _____ English teacher. They all like _____. [ ]
A. our; her
B. their; him
C. our; he
D. their; she
一张10年期,年利率为9%,市场价格为850元,面值为1000元的债券,即期收益率是( )。
A.1.06%B.9.76%C.10.6%D.97.6%