若要对某点进行比例、旋转变换，首先需要将坐标原点平移至该点，在新的坐标系下做比例或旋

根据材料内容选择最佳答案，将其标号填入题前括号内。

    Earthquakes can be very scary. But you need to keep your mind stable (坚定的) in order to make sure you

are safe. Be calm and try not to run here and there.

    If you manage to come out of your house, go to an open space like a garden or a park where you will be a lot

safer. If you live quite some floors above in your building, try to find a place near a bulky object such as a bed.

Curl up (蜷缩) and sit on the floor and make sure you are not near a window, fireplace, gas stove and so on.

Remember don't use lifts or escalators.

    Some people say you should on a doorway. That is not true. If the doorway jambs (侧壁) are weak, they

might fall on you. Also if people want to pass through that door, you may stop them. Leave all doorways free.

    Another important thing to keep in mind is that you mustn't climb down the stairs during an Earthquake. If

the tremors (震动) stop, after a few seconds, just climb down the stairs as quickly as you can and move out of

the building, but don't run.

    Earthquakes usually destroy gas pipes and electrical wires. Turn off the main gas. And don't light candles or

lighters and create an even bigger disaster.

    If you're driving and feel a shake, stop your car at the side of the road and get out. Make sure you are not on

a bridges and overhead roads (高架路) have the biggest danger of falling.

1. The best title for the passage should be             . [ ]

A. Dos and Don'ts Before an Earthquake.

B. What to Do in Case of Earthquake

C. Tips for Earthquake Preventions

D. Tips for Children in Earthquake.

2. The underlined word "bulky" in Paragragh 2 probably means              . [ ]

A. soft

B. large

C. small

D. tall

3. When an earthquake suddenly happens, you should             .

   a. remain standing near a window     b. turn off the main gas

   c. stay in an open space                   d. stand on a doorway

   e. keep off overhead roads [ ]

A. a, b, c

B. c, d, e

C. b, c, e

D. b, d, e

4. Which of the following is NOT true, when an earthquake suddenly happens? [ ]

A. We can't use the lift.

B. Curling up may be very dangerous.

C. We must turn off the gas.

D. We must get out of the car when the earthquake comes

5. It can be learned from the passage that             . [ ]

A. keeping calm in time of earthquake is very important.

B. measures should be taken to make buildings stronger.

C. Knowledge of first aid is must be done in an earthquake.

D. lots of things must be done to survive an earthquake.

肺源性心脏病心影呈()

A．滴状心

B．横位心

C．靴形心

D．梨形心

E．主动脉型心

“1825年9月27日早晨发生的情景是难以描述的。许多参加这一历史事件的人整夜都不能合眼，一直站着。人人精神振奋，心情愉快，有些人喜形于色，另外一些人惊讶不已，使得这个场面丰富多彩。列车在预定的时刻开动了。”列车的动力和能源来自

①蒸汽机②内燃机③电动机④煤炭⑤电力⑥石油 [ ]

A．①④　　　

B．②④⑥　　　

C．①③⑤ 　　　

D．①②③④

下列哪项不符合儿童急性风湿性关节炎（）

A.常侵犯大关节，呈游走性、对称性

B.炎症消退后功能完全恢复

C.X线检查可有关节面破坏、关节间隙变窄

D.急性期可有红、肿、热、痛及压痛

E.抗链球菌溶血素“O”600U以上

刘先生，昏迷，护士将其安置为去枕仰卧位，头偏向一侧。其目的是

A．引流分泌物，保持呼吸道通畅

B．保持颈部活动灵活

C．利于观察病情

D．减轻对枕骨的压迫，防止褥疮的发生

E．便于头部固定，避免颈椎骨折