珍珠母的功效是:()。
A.息风止痉
B.清肝明目
C.镇惊安神
D.平肝潜阳
E.凉血止血
参考答案:B, C, D
There is a system ________the waste is disposed of using the principles of ecology.
A.which
B.where
C.that
D.at which
食管损伤()
A.结扎断端
B.吻合
C.伤口局部填塞
D.缝合伤口,局部引流
E.伤口不缝合