秘书协助领导者在竞争中以新求活、以奇制胜,通常采用的参谋艺术是( )
A.借鉴他人、学习先进
B.推陈出新、独辟蹊径
C.奇思妙想、埋头探寻
D.沿袭传统、以静制动
参考答案:B
A terrible earthquake struck Yushu in Qinghai Province,so people there are badly________daily
necessities. [ ]
A. in need of
B. in face of
C. in favor of
D. in search of
切开DNA的酶是()
A、羧基肽酶
B、转录酶
C、逆转录酶
D、限制性内切酶