目前,深圳证券交易所推出的回购品种比上海证券交易所品种多,它们是( )。
A.18天回购
B.63天回购
C.273天回购
D.4天回购
参考答案:B,C,D
It's going to rain. Xiao Feng, will you please help me ______the clothes on the line? [ ]
A. get off
B. get back
C. get in
D. get on
采用国际标准应符合我国有关的法律法规,并遵循国际惯例,做到技术先进、经济合理。