问题

_______ basic first-aid techniques will help you respond quickly to emergencies.

A:Known
B:Having known
C:Knowing
D:Being known

正确答案是：

同类题型

13 The struggle against the bird flu andthe suffering _________ brought about have become a big concern across theworld

I can’t find my seat. Could you show me，sir?—________. May I see your ticket，please?

与“《齐谐》者，志怪者也”句式相同的一项是(　　)

What can I do for you—Can you give me __________ to read __________ is OK.

We were about to go out______ the rain poured down