根据句意,用所给动词的适当形式填空。

小题1:Time seems _______(go) faster when I am watching TV.

小题2:Her smiling face always makes us __________ (feel) very happy.

小题3:If you ____________ (not be) careful, you’ll make many mistakes.

小题4:Is Peter willing __________(share) his computer with his best friend, Daniel?

小题5:Listen! How beautiful the music ___________ (sound)!

关于相对危险度（RR）的叙述，下列哪项是正确的（）

A.无效假设值为零

B.在估计公共卫生措施的影响时比特异危险度更有用

C.在调查特定疾病的病因时比归因危险度更有用

D.不是流行病学病因调查的测量指标

E.以上都不是