Sir Jonas Hanway was credited for introducing the umbrella into England, but the English were slow to adopt it.

A．with

B．in

C．as

D．at

复议机关对被申请人作出的具体行政行为作出维持决定，必须满足哪些条件（）

A.事实清楚

B.适用法律、法规、规章正确

C.符合法定程序

D.内容适当