幼儿园的黑板最好使用()黑板。

题型:填空题

问题:

幼儿园的黑板最好使用()黑板。

考点:保育员考试幼师保育员幼师保育员题库
题型:填空题

阅读理解。

     Paper is one of the most important products ever invented by man. The invention of paper meant that

more people could be educated because more books could be printed. Paper provided an important way to

communicate with knowledge.

     Paper was first made in China about 2,000 years ago. In Egypt and the West, paper was not very

commonly used before the year 1400. Paper was not made in southern Europe until about the year 1100.

After that, the forestry countries of Canada, Sweden, Norway, Finland, and the United States because the

most important in paper-making. Today Finland makes the best paper in the world. And it has the biggest

paper industry in the world.

     When we think of paper, we think of newspapers, books, letters, envelopes, and writing paper. So paper

plays an important role in our lives.

     Paper is very good for keeping you warm. Houses are often insulated (隔热) with paper. You perhaps

seen homeless men sleep on a large number of newspapers. They are insulating themselves from the cold.

In Finland, in winter it is sometimes 40 degrees below zero. The farmers wear paper boots in the snow.

Nothing could be warmer.

1. What did the invention of paper mean? It meant _________.

A. more people could be educated

B. more books could be printed

C. paper is one of the most important products

D. Paper was invented by man

2. When was paper made in southern Europe?

A. Before 1100.

B. After 1400.

C. After 1100.

D. Before 1400.

3.  Which country makes the best paper?

A. Norway.

B. Canada.

C. The United States.

D. Finland.

4. What's the meaning of the sentence "Nothing could be warmer."?

A. Books are warmer.

B. Newspapers are warmer.

C. Paper is the warmest.

D. Houses are the warmest.

5. What's the main idea of the passage?

A. The invention of paper.

B. The best paper.

C. The paper-making.

D. The uses of paper.

题型:填空题

组成人体蛋白质的20种氨基酸,都是

A.D-α-氨基酸

B.D-β-氨基酸

C.L-α-氨基酸

D.L-β-氨基酸

E.D-α-或L-α-氨基酸

题型:填空题

战争年代因饥荒、人口拥挤、人口流动性增大而引起的急慢性传染病流行属于()

A.在流行病学三角模型中,环境因素不变,病因比重增加

B.宿主因素发生变化,宿主比重增加

C.病因、宿主、环境三要素保持动态平衡

D.环境因素发生变化,导致病因比重增加

E.环境因素发生变化,导致宿主比重增加

题型:填空题

城镇化,是指农村人口不断向城镇转移,第二、第三产业不断向城镇聚集,使城镇数量增加、规模扩大的历史过程。长期以来,我国基本上走的是一条粗放型城镇化道路,这种城镇化模式是以()为基本特征的外延式粗放发展模式。

A.高消耗

B.高排放

C.高扩张

D.高消耗、高排放、高扩张

题型:填空题

X线产生的基本条件是()

A.电子源、加速电场和靶

B.电子源、真空盒和靶

C.加速电场、真空盒和靶

D.电子源、真空盒和加速电场

E.电子源、真空盒加速电场和靶

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