对于AA级5年期公司债A，其信用利差为（） A.债券A的收益率—AA级1年期信用债收

解方程x²+5x-4=0

Can you ______ this word ______ English? [ ]

A. speak, with

B. say, in

C. speak, in

D. say, with

“忠实于国家”这句话体现了会计职业道德（）的基本要求。

A.客观公正

B.爱岗敬业

C.强化服务

D.诚实守信

填写词语。

1. _________( 猴子) are smart. They are my favorite animals.

2. The stone is so heavy that I can't _________( 举起) it.

3. I dream of sailing across the Pacific O________.

4. How strong the w________ is! Many trees have fallen down.

5. I don't know whether we can c_________ the train.

It will take us               to finish the work.   [ ]

A. half  hour              

B. one and half an hour  

C. one hour and a half  

D. one an half hours