Mrs. Brown was much disappointed to see the washing machine she had had  ________ went wrong again.

A．it

B．it repaired

C．repaired

D．to be repaired

《国务院关于投资体制改革的决定》规定，国家对我国企业到境外投资资源开发类和大额用汇项目实行______管理。

A．核准
B．登记
C．备案
D．审批