当用楔型线夹连接或固定接触网上材质为铜的线索时，楔型线夹内需用（）。

白斑的好发部位是（）。

A.口底黏膜

B.舌腹黏膜

C.颊、舌黏膜

D.软、硬腭黏膜

E.唇红及唇黏膜

阅读理解。

     Who are these people rushing by you in the street? More than 215 million people now call America

"home", but most of them can trace their families back to other parts of the world. If you look at the

names on shop windows, you will see that Americans come from many different lands. The idea that

these people, who once were strangers to the United States, have lost the customs and cultures of their

original countries and have become "American" is really not true. In fact, what exists in America is more

often a kind of "side-by-side" living in which groups of people from other countries often have kept many

of their customs and habits. They join the general American society only in certain areas of their lives-such

as in schools, business, and sports-but they keep many of their own native customs and manners socially

and at home. This living "side-by-side" has both advantages and disadvantages. Sometimes it may cause

disagreements to develop between groups whose ways of life are very different from one another. However,

there are also great advantages that come from the variety of cultures brought by settlers from other lands.

There is great freedom of choice among ideas and dress, food, and social customs in America. Everyone

can find some part of his or her familiar world in the United States, in churches, music, food, national groups,

or newspapers.

1. More than 215 million people call America "home" because_______.

A. they have their houses

B. they settle there now

C. they want to make their home there

D. they like that land very much

2. "Side-by-side" living style means _______.

A. to make friends with native people

B. to keep their own customs while sharing American ones in certain areas

C. the groups of people who live nearby

D. that they get closer to American society

3. Which of the following statements is true?

A. Americans from different lands always stick to their own customs and habits.

B. "Side-by-side" living style is not suitable.

C. Americans from different lands face the society they are not familiar with.

D. The advantages coming from the variety of cultures make life in America colorful.

4. Which is the best title for this passage?

A. Advantages and Disadvantages.

B. Different Customs and Habits.

C. Home for the People.

D."Side-by-side" Living Style in America.

患者根管治疗两年后，出现咬合痛，查见右上第一磨牙近中舌尖劈裂，劈裂部分稍有松动，叩痛（+），牙龈无红肿，冷热测无反应

对该牙的处理一般采用（）。

A.拔除患牙

B.拔除劈裂部分，然后重新充填

C.牙髓治疗

D.牙髓治疗后全冠修复

E.仅拔除劈裂部分

恶性程度较高的胃癌可以超越常规所属淋巴结转移方式，而直接侵犯远处淋巴结，其中最常见为（）。

A.锁骨上淋巴结

B.脾门淋巴结

C.腹腔动脉周围淋巴结

D.胃小弯淋巴结

E.胃左动脉淋巴结

对发生重大交通安全违法行为的应该处以哪种处罚。（）

A、警告

B、罚款

C、暂扣机动车驾驶证

D、吊销机动车驾驶证