可摘局部义齿基托磨光面的设计中，基托的舌腭面及颊面的基本形态应该为（） A.凸面 B

根据课文内容填空。

1．遨游太空的宇航员发出感叹：“我们这个地球太_______了，同时又太容易___________了。”所以我们要__________________。

2．印第安人喜爱______________________，喜爱它______________________，喜爱风中飘来的___________。 空气对我们来说也是宝贵的，因为一切生命都需要它。

The hardworking blacksmith(铁匠) Jones used to work all day in his shop and so hard working was he that at times he would make the sparks fly from his hammer.

The son of Mr. Smith, a rich neighbor, used to come to see the blacksmith everyday and for hours and hours he would enjoy himself watching how the blacksmith worked. "Young man, why don't you try to learn to make shoe tacks（鞋钉）, even if it is only to pass the time?" said the blacksmith. "Who knows, one day, it may be of use to you." The lazy boy began to see what he could do. But after a little practice he found that he was becoming very skilled and soon he was making some of the finest tacks.

Old Mr. Smith died and the son because of the war lost all his goods. He had to leave home and settled down in another country. It so happened that in this village there were many shoemakers who were spending a lot of money to buy tacks for their shoes and even at times when they paid high prices they were not always able to get what they wanted, because in that part of the country there was a high demand for soldiers' shoes.

Our young Mr. Smith, who was finding it difficult to earn his daily bread, remembered that he had learned how to make tacks and had the sudden idea of making a bargain with the shoemakers. He told them that he would make the tacks if they would help to get him settled in his workshop. The shoemakers were only too glad of the offer. And after a while, Mr. Smith found that he was soon making the finest tacks in the village.

"How funny it seems," he used to say, "even making tacks can bring a fortune（财富）.”

小题1:From the passage, we can learn the young Mr. Smith became rich ______.

A by selling shoes  B by making shoe tacks  C with his father’s help D by making bread

小题2:Which of the following statements is NOT true according to the passage?

A The young Mr. Smith’s father was very wealthy.

B The young Mr. Smith was lazy before learning to make shoe tacks.

C The shoemakers offered him a working place to make shoe tacks.

D The shoemakers were unwilling to buy the young Mr. Smith’s tack.

小题3:What can we learn from the young Mr. Smith’s success?

A．It is no use crying over the spilt milk.

B．A friend in need is a friend indeed.

C．All roads lead to Rome.

D．Seeing is believing.小题4:What is the right order of the events related to the young Mr. Smith?

a. He was born in a rich family.

b. He became rich by selling tacks.

c. His father died and he became poor.

d. He was asked to learn to make shoe tacks.

e. He settled in another country.

A．a-d-c-e-b

B．a-d-b-c-e

C．b-d-c-e-a

D．b-d-a-e-c

有学者认为，中国的瓷器（china）深受世界人民喜爱，所以，中国被称为China。更有学者指出，China是“秦”的音变（Qin→Chin-a）。解决这个问题的关键是（）

A.在考古学上取得突破，找到有说服力的证据

B.利用计算机等先进科技手段，进行广泛调查，得出科学结论

C.调查中外著名历史学家意见，用民主方式解决这一学术问题

D.弄清最早China称呼中国者先获悉了“秦”还是“瓷”的信息

叙述和谐2A、2B、2C、2E型动车组一级修驾驶台设备检修作业内容？