-- Excuse me, Sir. You_________take your camera into the museum.

-- Sorry, I didn't know and I promise you I_________. 

A．needn't; mustn't

B．can't; won't

C．mustn't; mustn't

D．may not; needn't

能直接为生命活动提供能量的物质是：（）

A.葡萄糖

B.ATP

C.脂肪

D.蛋白质