属经络系统连属部分是
A．别络B．经别C．浮络D．孙络E．经筋
参考答案：E
There are only 30 seconds ___and we can’t but ____without him.
A．to go ,to go
B．to go ,go
C．going ,go
D．going ,to go.
掺量≥1%的同品种外加剂每（）为一批
A.30吨
B.50吨
C.80吨
D.100吨
