不属于上海证券交易所国债回购品种的是( )。
A.7天国债
B.14天国债
C.21天国债
D.28天国债
参考答案:C
解析:21天国债不属于上海证券交易所国债回购品种。故选C。
It’s quite ______ that Mike is lying -he can’t be hungry already, for he had lunch only an hour ago! [ ]
A. genuine
B. contrary
C. obvious
D. rare
通常将直径为100~150mm的旋流器称为除泥器。