富余物料是指______ A．在现时条件下不能使用的物料 B．可以通过再加工再利用

A little knowledge (知识) can make a difference at a time of life or death. Do you know what to do if you find yourself in an earthquake?

If you are inside:

●Quickly move under a strong desk, a strong table or along a wall. You can also go into a small room like the bathroom. Do not get into a lift.

●Don’t stand near windows, large mirrors, heavy furniture or fireplaces.

If you are outside:

●Move away from buildings and streetlights. These could fall on you.

●Squat (蹲下) and protect your head until the shaking stops.

After the earthquake:

●Check, take care of injuries (损伤) and help make sure people around you are all right.

●Watch out for aftershocks.

●Protect yourself by wearing long pants, a long-sleeved(长袖的) shirt and strong shoes.

●Listen to the radio for the latest information.

小题1:If you are in a tall building when an earthquake happens, you’d better       .

A．run into a lift

B．not stay in the bathroom

C．stand near large mirrors

D．not stand near windows小题2:If you are outside during an earthquake,       .

A．you must move into a building

B．you cannot squat

C．you have to stop the shaking

D．you must move away from streetlights小题3: After the earthquake, you should       .

A．look after injuries

B．not listen to the radio for the latest information

C．protect yourself without wearing shoes

D．not help the others around you小题4:The underlined word “aftershocks” in the passage means       .

A．震感

B．震源

C．余震

D．防震小题5:The passage is mainly about       .

A．what to do before an earthquake takes place

B．what to do if you are in an earthquake

C．how to escape from an earthquake when you are at home

D．how to predict (预知) an earthquake in the open air.

将一个凸透镜对准太阳光，可在距透镜10厘米的地方得到一个最小的亮点，则该透镜的焦距是______．

读某大洲人口分布略图，完成下列问题。

（1）图中A大洲北临H_________洋，主要位于五带中的____________带。

（2）A洲人口稠密区主要分布在[ ]

A．东部、北部

B．东部、南部

C．东部、西部

D．中部、北部

（3 ）图中M地人口稀少的最主要原因是____________。

（4 ）图中A大洲与B大洲的分界线①为____________。

（5 ）图中表示马六甲海峡的是_______。（填序号）

下列各账户核算的内容影响营业利润计算结果的是（）。

A．主营业务成本

B．营业税及附加

C．管理费用

D．营业外支出

大钩负荷传感器在压力试验台上可以试压到40MPa吗？有何危害？