问题 选择题

两盆水里面都有没熔化的冰块,一盆放在阳光下,一盆放在阴凉处,在盆内冰块均未熔化完前,两盆水的水温相比

A.在阴凉处的那盆水的温度高

B.两盆水温度一样高

C.在阳光下的那盆水的温度高

D.无法确定

答案

答案:B

无论冰水混合物放在阳光下,还是放在阴凉处,气压相同,都是冰水混合物,温度是相同,故选B。

阅读理解

根据短文内容,判断句子正误。正确的用“A”表示,不正确的用“B”表示 。

     Is an earthquake dangerous? Yes. of course. But this doesn't mean you can't do anything about it. If you

know what to do in an earthquake, you can be safe.

     Keep a cool head. Worry may cause bad decisions. Don't follow others blindly. Think about what you

should do. The first several minutes are important.

     If you are indoors during an earthquake, quickly move to a safe place in the room such as under a desk

or table. Take care of your head. Stay away from windows and things that may fall and hurt you.

     If you are in a crowded room and far away from the door, don't rush to it. You will Find too many people

trying to escape at the same time. Instead, stay under a desk or table. Don't use an elevator. You may not get

out of it.

     Stay in a safe place until you are sure it's OK to leave. Some aftershocks (余震) may follow an earthquake.

These are as dangerous as the earthquake.

     If you are in debris (废墟), try to free your hands and legs. You may make noises by hitting stones.

Shouting will make you tired. Try to find some water and food. They are important for you if you aren't found

in a short time. Wait patiently for help.

( )1. Don't stay near the windows if you are indoors during an earthquake.

( )2. You may not get out if you use an elevator during an earthquake.

( )3. Rush to the door together if you are in a crowded room in an earthquake.

( )4. Keep staying in a safe place until you are sure it's OK to leave after an earthquake.

( )5. You should keep shouting until others hear you if you are in debris.

判断题