为防止杂物、雨水进入放空管内，在放空管口上方，应设置保护帽。盖帽的高度一般不小于放空

阅读理解。

     Sometimes you make a wish but when it comes, you decide you don't want it after all. That's what

happened with Mickey's "birthday wish".

     Our family tradition is that you make a wish before you blow out the birthday candle. After he blew

out the candle, Mickey told us that his wish was to win a prize in the Pine Ridge match. We quickly told

Mickey that if you tell people your wish, your wish won't come true. So we lit the candle again, and he

made another wish.

     Mickey and Paul were both supposed to start playing at 5:30.

     When Mickey reported to the check-in table, the game organizers told him his opponent had phoned

and said he was coming late. The officials told Mickey he could choose not to play-and be declared the

victor of the first round of competition.

     But Mickey said he didn't want to win by not playing. He wanted the experience of playing a great

player. Finally, the beast showed up. He was tall, smiling and relaxed. His serve (发球) was like lightning.

Mickey had some good returns, but he lost quickly, 6-1, 6-0. We congratulated Mickey on having some

good returns and a few great serves. And we noted that he had won the first game.

     "I didn't win that game," Mickey said. "I think he just gave it to me at the beginning because he arrived

late."

     "It was a birthday present," I said, smiling.

     "No, I refused my birthday present," Mickey said. In his eyes, his "birthday present" had been the

chance to win by his opponent's forfeit.

     Mickey ended up winning the "consolation trophy"-a smaller prize we didn't know existed until Mickey

earned it by being undefeated in the consolation bracket.

     We'll never know what Mickey's second wish was-the wish he didn't share with us.

     It seems to me that no matter how many birthdays you celebrate, as long as you enjoy challenges, you

will never be "old".

1. What impressed the writer most according to the passage?

A. Mickey was defeated in the game.

B. Mickey played fairly well in the game.

C. Mickey was brave enough to face the challenge.

D. Paul's perfect serve skill.

2. Why did Mickey lose the match?

A. He gave up the chance to be the victor of the first round of competition.

B. He let out his birthday wish.

C. He was too sure of his ability.

D. His opponent played much better than he did.

3. What did Mickey feel after the game?

A. He tried his best and that was enough.

B. He had no way to defeat his opponent.

C. He was not satisfied with himself.

D. He hated his opponent and was determined to beat him next time.

4. It can be inferred from the last paragraph that _____.

A. one can keep young by enjoying challenges

B. you will become old as you celebrate your birthdays

C. you will stay young by continuously celebrating your birthdays

D. you will keep young without celebrating your birthdays

建设投资动态部分包括( )。

A．建设期利息

B．安装工程费

C．涨价预备费

D．基本预备费

E．流动资金

公差带图包括公差带的大小和公差带的位置两部分内容。( )

下面叙述中正确的是( )。

A．在计算机中，汉字的区位码就是机内码

B．在汉字的国际标码GB2313—80的字符集中共收集了6763今汉字

C．英文小写字母e的ASCII码为101，英文小写字母h的ASCII码为103

D．存放80个24×24点阵的汉字字模信息需要2560个字节

简述监狱权利与义务的特点。