骨折愈合过程依次为（）、（）、（）和（）。

阅读理解。

     It seems to be strange to you there is a blind spot on the eye. Here is an interesting experiment that can

make something disappear, When one eye is open?

     Make a card about the size of a postcard and write two English letters L and R on it. L on the left and R

on the right. first, hold the card about 80 cm away and you see both the letters. Then close your right eye

and look at the letter R only with your left eye. And now, as you move the card slowly towards you, you'll

see the letter L disappearing. But if you move the card nearer to your lace, the letter will be seen again. Now

do the same experiment with your left eye closed, you'll see the letter R disappearing.

     Why did the letter disappear? It is because there is a blind spot on the eye. When the image of the letter

falls on the blind spot, it won't be seen. That is why either of the letters disappear.

1. The word"disappear" in the first paragraph means _____. [ ]

A. 消散

B. 丢失

C. 消失

D. 遗失

2. You fail to see the letter "L" in the experiment because _____. [ ]

A. your eyes are poor

B. you move it close to your eye

C. its image falls on the blind spot

D. your left eye is not open

3. In which order (顺序) should you do the experiment?

a. hold the card

b. move the card nearer

c. close your right eye

d. write two English letters

e. look at the letter R

f. make a card [ ]

A. f-d-a-b-c-e

B. a-c-f-d-e-b

C. f-a-d-c-b-e

D. f-d-a-c-e-b

4. This passage mainly (主要) tells us _____.[ ]

A. there is a blind spot on the eye

B. an interesting experiment

C. where the blind spot is

D. how to find the blind spot

I don’t like talking on      telephone；I prefer writing      letter.

A．the；a

B．不填；a

C．不填；the

D．the；不填

在新航路开辟的过程中，下列哪些航海家的航海活动横渡了大西洋：

①迪亚士       ②达·伽马    ③哥伦布    ④麦哲伦

A．①③

B．②④

C．①②

D．③④

男性，40岁，有早期肝硬化史、胆囊炎，因劳累，近1周发热，39℃，右季肋区不适，腹胀，下肢浮肿，巩膜、皮肤深度黄染，腹水征（+），凝血酶等时间延长，应诊断为（）

A.肝硬化自发腹膜炎

B.肝硬化失代偿

C.慢性重型肝炎

D.淤胆型肝炎

E.亚急性重型肝炎

股票的特征有（）。

A.期限性

B.风险性

C.参与性

D.潜在的高收益性

E.流动性