木材场两侧应有( )m宽的通道。
A．5
B．6
C．7
D．8
参考答案：B
The 2010 Guangzhou Asian Games will be ______ from Nov. 12 to Nov. 27. [ ]
A. held
B. examined
C. achieved
D. expected
含苹酸钙针晶的药材为
A．苦参B．牛膝C．白芍D．龙胆E．防己
