紧张综合征主要见于（）
A.精神分裂症紧张型
B.精神分裂症青春型
C.癔症
D.神经衰弱
E.躁狂发作
参考答案：A
Enough______ to stop the forest______ since the 1980’s.
A．has been done;be cut down
B．has done;cutting down
C．has been done;being cut down
D．had done;from being cut down
We usually accept payment by irrevocable L/C payable （） shipping documents.
A. among
B. between
C. about
D. against
