必须在最高管理层指定一名管理者代表。
参考答案:错
The girl felt nervous at the stage with a lot of audience _______her.
A.to stare at
B.staring at
C.stare at
D.stared at
下列不属关元穴主治的是()。
A.眩晕
B.痛经
C.泄泻
D.中风闭证
E.疝气