鸡内金具有的功效是（）
A.除痰浊
B.化湿浊
C.行气血
D.化结石
E.散郁结
参考答案：D
A draft regulation on school bus safety management was made public by the State Council, with the public________to give comments.
A．to invite
B．inviting
C．invited
D．having invited
为了安全起见，钢丝绳必需在卷筒上至少保留二圈以上。（）
A、正确
B、错误
