羊水检查一般需要羊水量为()
A.<10ml
B.10~20ml
C.20~30ml
D.30~40ml
E.>50ml
参考答案:C
We don’t know what ideas the director, Zhang Yimou, wants to ______ to the audience of the world
through the ceremony of the 2008 Beijing Olympic Games.[ ]
A.deliver
B.carry
C.convey
D.transport
每一种新版本的Windows都带有许多新功能,从总体上讲,Windows系统今后发展的主要趋势是______ 。