设a、b为简单命题,则“a且b为假”是“a或b为假”的 [ ]
A、充分非必要条件
B、必要非充分条件
C、充要条件
D、既不充分也不必要条件
答案:B
The small child was not old enough to _____ himself.[ ]
A. have
B. wear
C. dress
D. put
()理财产品募集的资金将悉数投资于境外市场。