空气中含氧量约为（）。A.18% B.29% C.21%

______提供不可靠的传输层协议。

A．TCP
B．UDP
C．ICMP
D．ARP

对于二氧化碳吸收剂的吸收率低于（），二氧化碳含量大于（），水分不能保持在（）之间的不准使用。

A.30%，4%，15%～21%

B.25%，4%，15%～21%

C.30%，3%，15%～21%

D.20%，5%，15%～21%

患者，男，65岁，3个月前不慎滑倒，头部碰撞门槛，当时无明显不适，血象正常。1周前出现头痛、头昏伴记忆力减退，视力下降，近日症状加重，说话含糊不清，且出现右侧肢体麻木乏力而卧床，既往有高血压、动脉硬化史多年，疑诊脑溢血或脑梗死入院治疗。查体：神清，嗜睡，血压24/13kPa(180/98mmHg)，呼吸18次/分，脉搏60次/分，双瞳孔等大，语言吐词不清，双眼底视神经 * * 边界模糊，A:V=1:3，右侧下肢锥体束征阳性。

最合适的处理措施是

A．颅骨钻孔穿刺抽吸

B．开颅探查清除积血

C．颅骨钻孔冲洗引流

D．颅锥锥孔穿刺抽吸

E．大剂量高渗性利尿脱水剂治疗

People bury treasure to stop other people from taking it. They choose a quiet place, dig a deep hole and bury the treasure in it. Then they make a map of where the treasure is or write down other clues（线索）that will help them or someone else to find it again.

In Britain a few years ago, a writer wrote about some treasure that he had buried. He put clues in the story to help readers find it. Thousands of people hunted for the treasure. They dug holes all over Britain, hoping to find it.

One of the most popular adventure stories ever written is Robert Louis Stephenson's “Treasured Island”, an exciting story about a young boy, Jim Hawkins, who is captured by pirates (海盗) and later finds some buried treasure.

Then there is the true story about a man who had to travel overseas for a year. He did not trust banks, so he buried his life savings in a park. Then he went away. On his return, he went straight to the park. But the park was no longer there. In its place there was a huge building.

And then there was the man who buried his savings, all in bank notes, in a waterproof（防水的）bag. When he dug it up years later, there was nothing left. Worms and insects had eaten the bag and everything in it.

And of course, these are stories about people who bury things and either forget where they have buried them or lose the map.

Although it is true that people sometimes lose their money because a bank fails, banks are still the safest place to keep our savings and treasures.

小题1:

People who bury treasure usually       .

A．do not trust banks

B．have a little money .

C．want to live in a quiet place.

D．expect to lose it小题2:

The writer in Britain       .

A．really had buried something.

B．started a nationwide treasure hunt.

C．had lost his treasure and wanted people to help him find it.

D．caused trouble because people dug holes everywhere.小题3:

. “Treasure Island”       .

A．is a story about pirates.

B．is about the adventures of Jim Hawkins.

C．is the most popular story ever written.

D．is a well-known fairy tale.小题4:

The man who buried his money in a park       .

A．thought his money was safer there than in a bank.

B．travelled on the sea for a year.

C．got his life savings back again.

D．stayed away longer than he expected.小题5:

From these stories we understand that       .

A．we cannot trust banks.

B．we should not trust anyone.

C．a waterproof bag is not proof against worms and insects.

D．insects eat anything.

Everyone gets angry sometimes, but being angry doesn’t really solve much. Your goal is to calm yourself down. This is (1) for some people. Instead of calming down, they might get more and more upset (2) they explode like a volcano. Some people might say they have trouble (3) their temper. Sometimes angry feelings can be hard to (4) . So what do you do if your temper is like a volcano

Well, the good news is (5) people don’t keep making the same mistakes over and over again. You can train your temper. Here are steps you can (6) at any time.

Get a lot of (7) activity. Exercise can be good because it is a way of (8) energy and stress. You can dance around your room (9) your favorite music, too.

Talk to your mom or dad. If you’re having trouble with your temper, tell your parents you’re trying to do a (10) job of controlling yourself. Let them know you are going to ask for their help.

Put (11) into words. Get into the habit of saying what you are feeling and why. (12) using words might help you manage your p feelings and behaviors.

Take a break from the (13) . If you are in an argument with someone, go to another part of your house. You can just say, "I want to be (14) for a while so I can calm down. "

Go into a (15) . If you fed angry and think you need a timeout to calm down, don’t (16) your parents to tell you to take a timeout for yourself. Let your family know that when you’re taking a timeout, they need to (17) your space and leave you alone. While you are sitting in your chair, try to take deep (18) .

Learn to shift. The idea is to shift from a really angry mood to a better mood. After you (19) the angry feelings out, you have to start thinking about other things, You can say, "I (20) my temper, but I’m going to get myself under control now.

18（）

A.feelings 

B.coughs 

C.sighs 

D.breaths