粘贴式木地面是用黏结剂或XY401胶黏剂直接将木地板粘贴在找平层上。如果为底层地面，

It's seven o'clock now. Let's _____ school. [ ]

A. to go for

B. to go to

C. go for

D. go to

Java语言中，下列( )是异常处理的统一出口。

A．try{…}子句

B．catch{…}子句

C．finally{…}子句

D．以上说法都不对

甲和乙之间的合同成立之后，二人之间合作不甚愉快，甲意图不经过乙的同意而解除合同，其可行的假设是( )。

A．在合同履行期届满以前，乙说：这个合同我不想履行了，除非你加价

B．乙给甲的货物存放的仓库着火，货物全部灭失

C．乙迟延履行合同，甲又给了乙一定时间，乙在宽限期内还没有履行

D．乙迟延履行合同，错过了甲的生产期

一 The woman biologist stayed in Africa studying wildlife for 13 years before she returned to her country.

— Oh, dear! She _____ a lot of difficulties.[ ]

A. may go through

B. might go through

C. must have gone through

D. ought to have gone through

胃肠道最常出现的伪像是（）。

A.声影

B.侧边折射声影伪像

C.振铃效应

D.棱镜伪像

E.后方回声增强