世界上第一个乘飞船进入太空的宇航员是( )
A.马可•波罗
B.哥白尼
C.杨利伟
D.加加林
世界上第一个乘坐宇宙飞船进入太空的是苏联宇航员加加林.
故选:D.
UNICEF _____ clean water, food and education _____ poor children in many countries. [ ]
A. provide, to
B. provides, for
C. provides, to
D. provides, with
简述预算收入退库的审批权。