1949年10月1日，在 * * 广场举行了开国大典，乐队演奏的乐曲是[ ] A．《

对战国时期出现“百家争鸣”局面的原因叙述不正确的是[ ]

A．在各国竟相改革的风潮中，有文化知识的士人受到了具有远见的国君的重用

B．传统的社会秩序受到受到冲击

C．春秋战国时期，生产力的飞速发展促进了商业的繁荣和城镇兴盛

D．官学很兴盛，培养了大批人才

Do you know why different animals or pests (昆虫) 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(庄稼). 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 (猎人). This is because they have the colors much like the trees.

Have you ever noticed an even stranger act? A kind of fish in the sea can send out a kind of very black liquid (液体)when it faces danger. While the liquid spreads over (散开), its enemies (敌人)cannot find it. And it immediately swims away. So it has lived up to now though it is not strong at all.

36. From 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

37. 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.

38. Bears and lions can keep safe because _________.

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

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

A. Because it is very and 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.

40. 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

与免疫有关的结膜病不包括（）

A.急性卡他性结膜炎

B.过敏性结膜炎

C.泡性结膜炎

D.滤泡性结膜炎

E.春季卡他

一个项目的成果性目标必须是( )。

A．约束性的
B．整体性的
C．明确的
D．可操作的

男性，30岁。进行性面色发黄、头昏、乏力半年。巩膜无黄染，脾肋下刚触及。血红蛋白35g/L，红细胞1.58×10¹²/L，白细胞4.45×10⁹/L，网织红细胞0.012。MCV78fl，MCHC0.26。骨髓增生活跃，红系增生，以中幼及晚幼细胞为主，原红及早幼红细胞亦稍增高，部分幼红细胞呈巨幼样变。铁染色细胞外铁（+++），铁粒幼细胞0.73，环状铁幼粒细胞0.45。幼红细胞糖原染色阴性。血清铁29.9μmol/L，总铁结合力39.9μmol/L。本例最可能的诊断是下列哪一种疾病（）

A.海洋性贫血

B.巨幼细胞性贫血

C.红血病

D.铁粒幼细胞性贫血

E.慢性感染性贫血