矩形截面梁上只有正弯矩作用，假设材料的拉伸弹性模量与压缩弹性模量的比值为3:2，那么

设BL=05H，要使结果BL=0AH，应执行的指令是( )。

A．NOT BL

B．AND BL

C．XOR BL,0FH

D．OR BL,0FH

By the time he got there, the party          .          [ ]

A. begin          

B. began          

C. had begun      

D. has begun

根据句意及汉语或首字母提示完成下列句子。

1. Our school is on _____ (eight) Avenue.

2. The store is on the r_____ of the bank.

3. There is a big supermarket in the n____.

4. Go _____ (沿着) the park, and you can see the pay phone.

5. _____ _____ (打扰一下). Is there a bank near here?

圆井