制度可进入性

题型:名词解释

问题:

制度可进入性

考点:经济学区域经济学区域经济学题库
题型:名词解释

没有尘埃,天上的云就很难形成。因为云是悬浮在空中的水滴和冰晶组成的。没有尘埃,水汽就无法凝结。尘埃是吸湿性微粒,可以做凝结核,使周围的水汽在它上面凝结,与云雨的形成直接相关。 尘埃促使天上的云形成的根本原因是( )。

A.没有尘埃,水汽就无法凝结

B.尘埃是吸湿性微粒

C.尘埃可做凝结核

D.云是悬浮在空中的水滴和冰晶组成的

题型:名词解释

Directions: Read the following passage. Complete the diagram by using the information for the passage.

Write NO MORE THAN 3 WORDS for each answer.

     Since it was founded a year ago, the babysitting pool has become increasingly popular in the United States.

More and more mothers have joined it and have benefited from it. What attracts them most is the idea that you

pay your babysitter not in cash, but in paper cards. When you join the babysitting pool, you are given thirty

cards, which are worth 30-minute babysitting time each. For each half an hour while you are gone, th

e babysitter gets paid one card.

     There are rules regulating this service. You should not watch more than three kids at a time including your

own. On big holidays, such as Christmas and Thanksgiving, the babysitter should be paid twice as much,

which means two cards for every half an hour. When you leave the babysitting pool, you should return all the

cards. If you are out of cards, you cannot use money instead. You should have to baby-sit for others to earn

enough cards so that you will have them handy when you yourself need a babysitter.

     Many mothers think highly of this service. It keeps children in constant touch with one another, and makes

life easier for the mothers. Since in most cases, the babysitter is the mother who watches other kids at her

own home, it is still possible for her to do her own things while the kids play with each other. In fact most

mother babysitters find that their own kids are less of a monster and easier to watch when they are around

other playmates. Moreover, since the babysitting pool service does not involve money, it will not be a financial

loss to the family.

     In the past year, the babysitting pool has helped so many mothers with their work that they all think that it

is indeed a good community service worth keeping.

题型:名词解释

防治疾病的基本原则是()

A.扶正却邪

B.泻实补虚

C.调理阴阳

D.却除病邪

E.补益正气

题型:名词解释

当阶跃扰动发生后,被控过程能达到新的平衡,该过程称为()过程,如果不能达到新的平衡,则称该过程为无自衡过程。

题型:名词解释

某开发小组欲开发一个规模较大、需求较明确的项目,开发小组对项目领域熟悉且该项目与小组开发过的某一项目相似,则适宜采用______开发过程模型。

A.瀑布
B.演化
C.螺旋
D.喷泉

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