穿山甲与王不留行的共同功效是（）
A.活血
B.调经
C.下乳
D.消肿排脓
E.利水通淋
参考答案：A, B, C
He suddenly remembered that ___at home.
A．he forgot his schoolbag
B．he left his schoolbag
C．his schoolbag had been forgotten
D．his schoolbag had been left
在开始设备系统调试前，调试方案已（），参加调试人员应持证上岗，掌握了操作要领和事故处理方法，安全操作所需工器具齐备。
A、编写
B、批准
C、审核
D、签名
