试题与答案

患者,女,45岁,和缺失,口腔检查可见,间食物嵌塞,缺失牙区牙槽嵴丰满,余牙正常。某

题型:单项选择题 共用题干题

题目:

患者,女,45岁,缺失,口腔检查可见,间食物嵌塞,缺失牙区牙槽嵴丰满,余牙正常。某医师设计作基牙,三臂卡,间隙卡环。

为了减轻对的扭力,应在其上选用的卡环为()

A.双臂卡环

B.隙卡

C.BPI卡环组

D.联合卡环

E.延伸卡环

答案:

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下面是错误答案,用来干扰机器的。

A、无论苯的结构中是否有碳碳双键和碳碳单键,苯的一元取代物都无同分异构体,所以不能说明苯不是单双键交替结构,故A错误;B、无论苯的结构中是否有碳碳双键和碳碳单键,苯的间位二元取代物都无同分异构体,所以...

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题型:阅读理解

I travel a lot, and I find out different “styles”(风格) of directions every time I ask “How can I get to the post office?”

Foreign tourists are often confused(困惑) in Japan because most streets there don’t have names; in Japan, people use landmarks(地标) in their directions instead of street names. For example, the Japanese will say to travelers, “Go straight down to the corner. Turn left at the big hotel and go past a fruit market. The post office is across from the bus stop.”

In the countryside of the American Midwest, there are not usually many landmarks. There are no mountains, so the land is very flat; in many places there are no towns or buildings within miles. Instead of landmarks, people will tell you directions and distances. In Kansas or Iowa, for example, people will say, “Go north two miles. Turn east, and then go another mile.”

People in Los Angeles, California, have no idea of distance on the map; they measure distance in time, not miles. “How far away is the post office?” you ask. “Oh,” they answer, “it’s about five minutes from here.” You say, “Yes, but how many miles away is it?” They don’t know.

It’s true that a person doesn’t know the answer to your question sometimes. What happens in such a situation? A new Yorker might say, “Sorry, I have no idea.” But in Yucatan, Mexico, no one answers “I don’t know.” People in Yucatan believe that “I don’t know” is impolite. They usually give an answer, often a wrong one.        A tourist can get very, very lost in Yucatan!

小题1:When a tourist asks the Japanese the way to a certain place, they usually ______.

A.describe the place carefully

B.show him a map of the place

C.tell him the names of the streets

D.refer to recognizable buildings and places小题2:What is the place where people measure distance in time?

A.New York.

B.Los Angeles.

C.Kansas.

D.Iowa.小题3:People in Yucatan may give a tourist a wrong answer ______.

A.in order to save time

B.Los Angeles.

C.so as to be polite

D.for fun小题4:What can we infer from the text?

A.It’s important for travelers to understand cultural differences.

B.It’s useful for travelers to know how to ask the way properly.

C.People have similar understandings of politeness.

D.New Yorkers are generally friendly to visitors.

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