单项选择题：下降管一般采用内径为80～140mm的管子，采用集中下降管时，管子的内径为( )m

题型：单项选择题

There’s a man in the habit of hitting me on the head with an umbrella. At first I couldn’t stand it; now I’m used to it.

I don’t know his name. I know he’s ordinary in appearance, wears a gray suit and has a common face. One hot morning, when 1 was sitting on a tree-shaded bench in Palermo Park, reading the paper, suddenly I felt something touch my head. It was the very same man who now, as I’m writing, keeps striking me with an umbrella.

So I turned around filled with anger. He just kept on hitting me. I asked him if he was crazy. He didn’t even seem to hear me. Then I threatened (威胁) to call a policeman. Calmly cool as a cucumber, he went on hitting me. After a few moments of hesitation (犹豫), and seeing that he was not about to change his attitude, I stood up and hit him on the nose. The man fell down. But he immediately got back on his feet, obviously with great effort, and without a word again began hitting me on the head with the umbrella. His nose was bleeding and, at that moment. I felt sorry for him I regretted having hit him so hard. After all, the man wasn’t exactly hitting me；he was only tapping me lightly with his umbrella, not causing any pain at all. Of course, those taps were extremely upsetting. As we all know, when a fly lands on your forehead, you don’t feel any pain；what you feel is annoyance (烦恼). Well then, that umbrella was one huge fly that kept landing on my head time after time.

Believing that I was dealing with a madman, I tried to escape. But the man followed me, wordlessly continuing to hit me. So I began to run (I should point out that not many people run as fast as I do). He ran after me, trying to hit me. The man was out of breath so that I thought, if I continued to force him to run at that speed, he would drop dead right then and there.

64. When the man began to strike the author with an umbrella, the author_________

A. became angry B. called the police

C. turned around and escaped D. turned around and fought back

65. The author would most probably agree that the man was________.

A. deaf B. blind C. dead D. mad

66. The author felt sorry for the man because _______.

A. there was a fly on the man’s head B. he hit the man so hard that his nose bled

C. the man couldn’t catch up with him D. the man formed a bad habit of beating others

67. It can be learned from the passage that the man__________.

A. shouted loudly while hitting the author B. wanted to tell the author something

C. ran after the author breathlessly D. acted as if he were a fly

查看答案

下降管一般采用内径为80～140mm的管子，采用集中下降管时，管子的内径为( )m

问题：