何首乌的功效不包括
A．补益精血B．柔肝止痛C．截疟D．润肠通便E．解毒
参考答案：B
简要分析细纱车间温湿度与纺纱工艺的关系？
The Great Wall was built to keep ______ the invaders.
A．in
B．out
C．up
D．off
