分解因式（a+b）2-4（a+b）c+4c2=______．

发布时间：2017-05-06 20:24 │ 来源：www.tikuol.com

题型：填空题

问题：

分解因式（a+b）²-4（a+b）c+4c²=______．

考点：因式分解

题型：填空题

If you are cycling in foreign countries, you will need to know what these traffic signs and signals mean.

1		A sign like this one means that there is a bike lane(车道). If there is such a sign，you are required to use the bike lane. If there is not such a sign, you should ride with traffic as far to the right side of the road as possible.
2		This signal means you can cross the street along with pedestrians(行人). It has a green picture of a oerson walking instead of using the word“walk”.
3		This signal is the “don’t walk”sign. It is a picture of a red hand, meaning you should stop. You should wait to cross the street until the green picture of the person walking is showing.
4		Car drivers and bikers must come to a complete stop at“STOP” signs.
5		A“YIELD”sign means to slow down and be ready to stop. If there are pedestrians or vehicles in or near the crossroad, you must stop. If there is no traffic in or near the crossroad and it is safe, you may go through.
6		This signal means you are coming to a zebra crossing. Car drivers and bikers must stop to allow people in the zebra crossing to cross the street.
7		When people are working on the roads, parts of the road are often dug up or rough(不平整的). Be careful when yon are cycling. Rough roads could make you fall off your bike. If you must move into the road to go around a work area，you should stop and look carefully to be sure there is no traffic coming.
8		A detour is a way of getting around a roadway that is closed. Roads are usually closed because of road work or dangerous conditions. If you must take a detour, be careful about the roads you aren’t used to.

小题1:What are cyclists required to do when they see the sign?

A．To ride against traffic.

B．To ride on the left side of the road.

C．To ride on the bike lane.

D．To ride on the right side of the road

小题2:Which of the following signs has the same meaning as the sign?

小题3:What should cyclists do when they see the sign?

A．They should be careful when they cycle on the rough road.

B．They should take the rough road and fall off their bikes.

C．They should move into the road to go around a work area.

D．They should take another route instead of the closed roadway.

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题型：填空题

下列对工程施工投标人资格的叙述中，错误的是( )。

A．投标人应该具有的企业法人资格和从事相应工程施工的资质

B．以联合体形式参加投标的，由同一专业的单位组成的，应按其最高的资质等级确定联合体投标人的资质等级

C．联合体各方签订共同投标协议，承担单独和连带责任

D．作为联合体一方参加投标，则不得再单独以自己的名义或者参加其他联合体对同一标段投标

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一般的，所有价格形态在完结（突破点）时，只要这个突破信号是成立的，那么它就应当伴随较大的交易量。（）

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气敏电极的标准电位与温度有较大的关系，一般温度每升高一度（℃），其电位值升高（）mv，所以必须要保持样液和标准液在同温下测定，两者温差不应大于（）℃。

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题型：填空题

演示性晚宴妆造型强调整体的（）。

A.和谐美

B.人物美

C.造型美

D.色彩美

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