An order came from the command ________ all the PLA men should rush to the disasterhit area

to help  the people there.[      ]

A. how  

B. that

C. which  

D. where

草乌的来源是（）

A、乌头侧根

B、北乌头块根

C、北乌头侧根

D、黄花乌头块根

E、阿尔泰金莲