正常精液检查不正确的是()。
A.精液量4ml
B.液化时间为28分钟
C.a、b级精子活动力为40%
D.异常形态精子为11%
E.精子计数为100×109/L
参考答案:C
下列关于水的物理现象描述正确的是( )。
A.蒸发时放热,结冰时吸热
B.蒸发时吸热,结冰时放热
C.结冰和蒸发时都吸热
D.结冰和蒸发时都放热
一Is there a computer on Miss Li's desk?
—_____. There are only some books on it. [ ]
A. Yes, there is
B. No, there isn't
C. Yes, it is
D. No, it isn't