ARP 攻击造成网络无法跨网段通信的原因是 （） 。可以使用 （） 命令清除受攻击影

We should look up to _____ lends a hand to the people in trouble. [ ]

A. whoever

B. those who

C. whomever

D. no matter who

图２是一首著名歌曲作品的手迹，该歌曲广泛流行于中国近代某一时期，表达了中国军民团结一致、英勇抗战的心声。该歌曲最有可能创作于

A．19世纪40年代

B．20世纪初

C．20世纪30年代

D．20世纪50年代

设X="ABC"，Y="ABCD"，则下列表达式中值为.T.的是 ______。

A．X=Y

B．X==Y

C．X$Y

D．AT(X，=0

第三部分 阅读理解（共16小题；每小题 2 分，满分 32分）

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。

A

One evening a police officer was driving slowly along a road. He was off duty and was wearing plain clothes.

Suddenly he saw two men running out of a building. He heard someone shouting, “Help! Help! Stop thief!” The police officer was sure that the two men were thieves. He knew he must arrest them. However, he was not only out of uniform (制服) but also unarmed (没有带枪). He knew if he got out of his car and tried to arrest them, at least one of the men would easily escape. The police officer was facing a difficult problem. He knew that he mustn’t let the men escape, but how could he arrest them?

He thought quickly and had an idea. It involved danger and it might not work, but he decided to try.

He drove his car up to the men and stopped beside them. Then he put his head out of the window and asked, “Do you want a lift?”

“Yes, yes,” the men answered, and quickly got into his car. “Please take us to the railway station,” they told him.

“Very good,” the police officer said and drove off. After a few minutes, one of the men cried out, “But this isn’t the way to the railway station. Where are you going?” “I must go this way,” the police officer explained. “There’s a big fire and the traffic is held up. You don’t want to sit in a traffic jam, do you?”

“No, no,” the men agreed. “Please take us the quickest way.”

The next moment, the police officer had pulled up at the police station. He jumped out, shouted for help, and seconds later the two thieves were arrested.

61. How did the police officer decide to try to arrest the two thieves?

A. By telephoning the police for help.

B. By letting them get into his car.

C. By going back to the police station for his gun.

D. By asking people around to help him.

62. The underlined word “involved” means “        ”.

A. developed         B. offered         C. stopped        D. caused

63. Why did the police officer tell the two thieves to get into his car instead of going to catch them directly?

A. He was afraid he would be beaten by them.

B. He was afraid they would recognize him.

C. He was afraid one of them would escape.

D. He was afraid they would not escape.

64. Soon after the two thieves got into the car they found out that ________.

A. they were not on the way to the railway station

B. the police officer was taking them to the police station

C. they were on the way to the airport

D. they were caught by the policeman