问题

Scientists who study noise say that average noise level in New York is 72.5 decibels.

A:/；the
B:/；an
C:the；an
D:a；the

正确答案是：

同类题型

I’d like to book a room for tonight. — Sorry, sir, but we don’t have any rooms _____ at the moment. [ ]

Only by increasing the number of doctors by 50 percent ____ properly in this hospital.

s alot of things, so she knows exactly how to deal with such a person.

You ___ nine . He ____ seven .I ___ eleven .

下列各句中，加点的成语使用恰当的一项是(　　)