问题详情

What does the sentence imply: "As Robert Hanssen has learned, intelligence is hardly a sure thing."？
A．He shouldn"t have counted on the chances of not being exposed.
B．It is hard to predict whether the Bush Administration would be more "pragmatic" and easier to work with or not.
C．Moscow had to back down a bit, stressing its willingness to talk about a missile shield.
D．Both A and Ｂ.