麝香内服的剂量是（）
A.0.1～0.5g
B.0.03～0.1g
C.1～3g
D.0.5～1g
E.2～6g
参考答案：B
On the chairs _________ , who had come to Dalian looking for jobs.
A．three young men sat
B．sat three young men
C．did three young men sit
D．three young men sitting
数据流图中带有箭头的线段表示的是（）。
A．控制流
B．事件驱动
C．模块调用
D．数据流
