拟制公文的起始环节是()。A．拟稿 B．会商 C．核稿 D．注发

板翅式换热器主要是由（）组成。

A．平板

B．垫片

C．翅板

D．封条

根据所给中文意思，完成下列各句。

1. 我喜欢带有大量图片的杂志。

  I like magazines _____ _____ lots of pictures.

2. 比起数学来，我更喜欢物理。

  I _____ physics _____ maths.

3. 你认为他的作文怎么样？

  What do you _____ _____ his composition?

4. 说实话，我不想让父母失望。

   _____ _____ _____ I don't want to _____ my parents _____.

5. 我非常运来这里学习六个月的英语课程。

  I'm lucky to be here for _____ _____ _____.

     Students across China, studying in the fields of engineering, science and technology, are developing a

range of inventions that they hope will one day be marketable. Here are three examples from the minds of

these inventors.

     Foot-controlled mouse is a new kind of mouse. It is controlled by the feet instead of the hands, to help

the disabled when they surf the Internet. It looks like a pair of blue slippers. When users press the slippers with their forefeet, they are clicking the left mouse button; when people press with their heels, they are

clicking the right mouse button; when they roll their feet over the slippers, they can view web pages.

     Dirty water filter(过滤器) can make dirty water drinkable, which is a good way to solve the lack of

water and also does good to the environment. There are two main parts: the drive zone to pump water

and the material zone to reduce harmful things. Rain and fish tank water can be cleaned in the material

zone. Someone told us that water was sent by air to Wenchuan. If they had sent water-purifying plant

instead, people could have had more water after the earthquake.

     Transformer car is named Tranfus. By changing the size of tyres and the structure of a car, it can

become a motorbike or a luggage carrier. The name Tranfus is short for "transforming for us" . Tranfus

can change into a luggage carrier, and users could walk with it. But its inventor doesn't think Tranfus will

be on the market soon as some companies like it, but none are willing to invest.

1. Who will be most likely to use the foot-controlled mouse?

A. Those who are lazy.  

B. Those who are left-handed.

C. Those who have disability in hands.  

D. Those who are poor in study.

2. According to the passage we can infer the dirty water filter _____________.  

A. has been on the market

B. is popular with young people

C. is only designed for the people in the earthquake

D. can be useful when some kinds of natural disasters happen

3. Tranfus can't be on the market soon because ______________.

A. there are no companies showing interest in it

B. there are no companies offering to invest in it

C. it is only a crazy idea and has no scientific theory to support it

D. it is too small to be a car and too big to be a luggage carrier

塑件中嵌如嵌件的目的是什么？

由于农业生产和天气气候条件都具有明显的地域性，所以各地农业生产实践中存在的关键问题是（）。

A.不完全相同的

B.完全相同的

C.基本相同的

D.部分相同的