一堆木料,最上层有2根,最下层有6根,相邻的两层都相差一根,这堆木料共有( )[

题型:选择题

问题:

一堆木料,最上层有2根,最下层有6根,相邻的两层都相差一根,这堆木料共有(    )[ ]

A.10根

B.12根

C.20根

D.8根

考点:梯形的面积
题型:选择题

阅读理解。

     Every 30 seconds there is an earthquake. But don't worry because most are so weak that they cannot be

felt. Only a few big ones hurt people. Here are some tips on how to stay safely in an earthquake.

     If you are indoors during an earthquake, hide under a desk. Stay away from windows and anything that

could fall on you. If you are outdoors, move to a clear place. Try to be away from trees, signs, buildings

and streetlights. These could fall on you. If you are in a shop and far from the door, don't try to run to outside

and rush for exits (出口). Everyone will be doing that and you'll find it hard getting out. Don't get into a lift

during an earthquake. Just hide under some strong covers near you.

     When an earthquake has ended, be careful because after-shocks may still happen. These are just as

dangerous as the earthquake itself. So stay under the desk until you make sure it's safe to get up. If you are

at home and you smell gas, open the windows and get out of the building as quickly as you can. A gas line

in your house may be broken. This could be very dangerous.

1. Most earthquakes are too _____ to hurt people.

A. strong

B. weak

C. dangerous

2. If you are outdoors, it would be safe to _____.

A. go to a playground

B. stay under a tree

C. stand by the window

3. If you're in a shop and far from the door, you'd better _____.

A. rush to the door right away

B. hide under some strong covers near you

C. rush to a lift to get down

4. This passage tells us _____.

A. how dangerous the earthquake is

B. how to be safe in an earthquake

C. how does the earthquake come into being

5. Which is NOT true?

A. Don't get into a lift during an earthquake. Just hide under some strong covers near you.

B. If you are at home and you smell gas, open the windows and get out of the building.

C. If you are indoors during an earthquake, standing at the windows is safe.

题型:选择题

木香具有的功效是()

A.行气止痛,健脾消食

B.疏肝止痛,助阳止泻

C.行气调中,温脾化痰

D.破气消积,散寒止痛

E.理气调中,温肾助阳

题型:选择题

除下列哪一项外是形成现代护理学理论的4个框架性概念()

A.人

B.健康

C.医疗

D.环境

E.护理

题型:选择题

工作人员由于特殊原因必须移开或越过带电设备的遮栏时,应该怎样做?

题型:选择题

某工厂有100名工人报名参加了4项专业技能课程中的一项或多项,已知A课程与B课程不能同时报名。如果按照报名参加的课程对工人进行分组,将报名参加的课程完全一样的工人分到同一组中,则人数最多的组最少有多少人()

A.7

B.8

C.9

D.10

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