香附、乌药、木香共同的功效是（）
A.降逆止呃
B.疏肝解郁
C.行气止痛
D.行气导滞
E.消肿散结
参考答案：C
流体的连续性规律与（）有关。
A.管路的布置及管件、阀门
B.管径大小
C.流量是否稳定
D.输送设备
Complex projects, involving cross-disciplinary efforts, are MOST effectively managed by ______ .
A．multiple lead project managers
B．a functional organization
C．a p matrix organization
D．a p traditional manager
