下列哪类债券不通过本币交易系统交易（）A、中期票据B、短期融资券C、资产支持证券D、

阅读理解。

     Do you know why different animals or pests have their special colors? Colors in them seem to be

used mainly to protect themselves.

     Some birds like eating locusts (蝗虫) , but birds cannot easily catch them. Why? It is because

locusts change their colors together with the change of the colors of' crops. When crops are green,

locusts look green. But as the harvest time comes, locusts change to the same brown color as crops

have. Some other pests with different colors from plants are easily found and eaten by others. So they

have to hide themselves for lives and appear only at night.

    If you study the animal life, you'll find the main use of coloring is to protect themselves. Bears, lions

and other animals move quietly through forests. They cannot be easily seen by hunters. This is because

they have the colors much like the trees. They can often hide in the trees and catch some other little

animals.

    Have you ever noticed an even stranger act? A kind of' fish in the sea can send out a kind of very

black liquid when it faces danger. While the liquid spreads over, its enemies cannot find it. And it

immediately swims away. So it has lived up to now though it is not strong at all.

1. Frorn the passage we learn that locusts _____.

A. are small animals

B. are easily found by birds

C. are dangerous to their enemies

D. change their colors to protect themselves

2. How can pests with different colors from plants keep out of danger?

A. They run away quickly.

B. They have the colors much like their enemies.

C. They hide themselves by day and appear at night.

D. They have to move quietly.

3. Why can't the hunters see the bears and lions?

A. They have the colors much like the trees.

B. They move quietly.

C. They like brown and gray colors.

D. They live in forests.

4. Why can the kind of fish live up to now?

A. Because it is very strong.

B. Because the liquid it sends out can help it escape from its enemies.

C. Because the liquid it sends out can kill its enemies.

D. Because it swims faster than any other fish.

5. Which is the best title for this passage?

A. The Change of Colors for Animals and Pests

B. Colors of Different Animals and Pests

C. The Main Use of Colors for Animals and Pests

D. Some Animals and Pests

95的多少倍是19的35倍？

常伴有口腔病损的天疱疮是

A．增殖型天疱疮

B．寻常型天疱疮

C．落叶型天疱疮

D．副肿瘤天疱疮

E．红斑型天疱疮

关于β-折叠正确的说法是（）

A.只存在于α-角蛋白中

B.只有反平行式结构，没有平行式结构

C.α-螺旋是右手螺旋，β-折叠是左手螺旋

D.主链骨架呈锯齿状形成折叠的片层

E.肽平面的二面角与α-螺旋的相同

治燥邪伤肺，干咳痰少，首选（）

A.蝉蜕

B.柴胡

C.桑叶

D.葛根

E.升麻