通常凡是能起到降低摩擦阻力,起到润滑作用的介质都叫做()。A、润滑剂B、稀释剂C、调

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问题:

通常凡是能起到降低摩擦阻力,起到润滑作用的介质都叫做()。

A、润滑剂

B、稀释剂

C、调和剂

D、增稠剂

考点:高级涂装工高级涂装工题库
题型:单项选择题

2012年1月14日早上,长江路32号附近路面发生一起交通事故,两部同向行驶的汽车发生“追尾”。观察汽车A的尾部(如图所示),说明力能够改变物体的___________;“追尾”碰撞的一瞬间,B汽车对A汽车的撞击力______A汽车对B汽车的力(选填“>”、“<”或“=”)。

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E

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Every boy and every girl expects their parents to give them more pocket money. Why do their parents just give them a certain amount?   51  

The amount of money that parents give to their children to spend as they wish differs from family to family.   52   Some children get weekly pocket money. Others get monthly pocket money.

First of all, children are expected to make a choice between spending and saving. Then parents should make the children understand what is expected to pay for with the money. At first, some young children may spend all of the money soon after they receive it. Parents are usually advised not to offer more money until it is the right time.  53

In order to encourage their children to do some housework, some parents give pocket money if the children help around the home. Some experts think it not wise to pay the children for doing that. 54   

Pocket money can give children a chance to experience the three things they can do with

themoney. They can spend it by giving it to a good cause. They can spend it by buying things they want.   55  Saving helps children understand that costly goals require sacrifice. Saving can also open the door to future saving and investing for children.

A.They can save it for future use.

B.Timing is another consideration.

C.As helping at home is a normal part of family life.

D.Some children are not good at managing their pocket money.E. Learning how to get money is very important for every child.

F. One main purpose is to let kids learn how to manage their own money.

G. By doing so, these children will learn that spending must be done with a budget(预算).

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图片所显示细胞的最重要特点是()

A.细胞大

B.胞浆含大空泡

C.细胞核大,染色质粗而深染

D.细胞大小不一致

E.细胞散在

题型:单项选择题

关于冲突论和功能论,下列说法正确的是()

A.冲突论和功能论关于社会的假设是一致的

B.冲突论相信社会是和谐的,功能论相信社会是矛盾冲突的

C.冲突论和功能论是相互竞争的两种社会学解释方式

D.在解释各种社会不平等现象上,冲突论的解释力不如功能论

题型:单项选择题

落枕痛甚,难以转动时()

A.此症不适合推拿治疗

B.可先按揉患侧天宗穴,当痛稍减后,再施扳法

C.可先用热敷法,再推拿治疗,但不宜用扳法

D.等疼痛减轻,头可转动时,再以推拿治疗

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