站内正线及到发线上的道岔，均须与有关的信号机（）。A.闭塞 B.联锁 C.无联锁 D

阅读理解。

                                                           A Birthday Present

     Susan has three dollars-the pocket money (零用钱) she had saved up. She wanted to buy a birthday

present for her father. She came to a big shop. She looked at the goods in a shop window and thought,

"I should give him something to wear."

     "Can I help you, little girl?" said the shopkeeper, Mr King. "Yes, please. I'm looking for a present for my

dad," said Susan, "but I don't know what to buy. "Mr King showed her a nice shirt and said, "What about this?"

"No, I have only three dollars," said Susan. Then she saw a beautiful white tie. She knew her father would like

it. She wanted to get it, but it might be very dear,she was afraid.

     "How much is it?" She asked. Mr King looked at her for a while and then he took off the price tag and

said, "That's just three dollars." "Oh, fine!" Susan said happily, "I'll take it."

1. Susan wanted to buy _________.

A. something to wear

B. a skirt

C. a shirt

D. a present for her dad

2. How much money did Susan have?

A. About 3 dollars.

B. Less than 3 dollars.

C. More than 3 dollars.

D. Only 3 dollars.

3. Mr King is _________.

A. the salesman

B. the shopkeeper

C. a friend

D. a neighbour

4. At last, Susan bought _________.

A. a shirt

B. a pair of shoes

C. a tie

D. a tag

5. From the story we know that Mr King is a _________ man.

A. kind

B. bad

C. tall

D. fat

任何一台计算机只要采用（）协议并与INTERNET中任何一台主机连接，就可以成为INTERNET的一部分。

A、IPX/SPX

B、VINES

C、IPXODI

D、TCP/IP

地高辛中毒最多见的心脏毒反应是（）

A.阵发性室上性心动过速

B.房室传导阻滞

C.室性早搏

D.室性心动过速

技术引进是在技术转让中就（）的一方而言的。

A.输出技术

B.输入技术

C.持有技术

D.引进技术

汽车的转向操纵系统应具备（）。

A.适度的不足转向特性

B.保证稳定的直线行驶性能

C.转向后能自动回正

D.正常的中性转向特性