Quite a few people used to believe that disaster ______ if a mirror was broken. [ ]

A. was sure of striking

B. was sure of having struck

C. was sure to be struck

D. was sure to strike

如果对某一张幻灯片进行详细设计、应在（）下进行。

A.大纲视图

B.幻灯片放映视图

C.幻灯片视图

D.幻灯片浏览视图