什么是干燥防霉功能？

阅读理解。

     Mr Lu is a teacher of English. He isn't young,   but he isn't old. He is a tall man.  He has a round face and black hair.

There are fifty students in his class. They all like him. Now it's five p.m.. Look,  some students are still working at their

English in the classroom. What is Mr Lu doing? He is helping them with their English. He's a good teacher and a good

friend of his students, too.

1. Mr Lu is       

A. young

B. tall

C. old

D. thin

2. What can we know about Mr Lu?

A. He is having an English class at five p.m.

B. There are forty students in his class.

C. He has a round face and black hair.

D. He has a square face and black hair.

3. At 5 o'clock in the afternoon, the English teacher          

A. goes home

B. is in his office

C. is in the classroom

D. walks

4. The students work hard. They want           

A. to learn English well

B. to play games after they finish their homework

C. to play with their English teacher

D. to play with cats

5. Which is not true?

A. Students are doing their homework in the classroom after class.

B. Mr Lu is a middle-aged man

C. Mr Lu wants to help them with their English

D. Mr Lu is an English teacher

在括号里填上恰当的词语。     

(      )的豌豆    精心(      )     

(      )的菜园    冲进(      )     

(      )的山坡    开垦(      )     

(      )的岩石    选择(      )     

(      )的土地    发挥(      )     

(      )的湖水    发扬(      )

下列属于让渡资产使用权的利息收入和使用费收入的确认原则是( )。

A．交易的完工进度能够可靠地确定
B．相关的已发生或将发生的成本能够可靠地计量
C．与交易相关的经济利益很可能流入企业
D．企业已将商品所有权上的主要风险和报酬转换给购货方

青岛海魂贸易公司进口一批美国产电子产品(税率40%)，CIF青岛为22000美元，2007年 12月15日向海关申报，假设这天的汇率是8.2。海关次日开箱查验，在查验过程中海魂公司的陪同人员不小心摔坏几件产品，另外发现有两箱产品与合同不符。检查完毕，海关关员对此作了详细记录。货物于2007年12月20日放行。

与合同不符的两箱产品海魂公司预退货应( )。

A．填写出口货物报关单，提供原来进口货物报关单

B．照章纳税，按一般贸易对待

C．一年内退运的退还原进口税款

D．一年内退运的免征出口税

简述锚杆拉拔力的测试方法。