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问题 单项选择题 A1/A2型题

患儿，男，7岁，自述左上后牙松动，咬合不适，影响进食。口内检查，左上第二乳磨牙近中龋损，探无不适，叩诊（-），牙龈正常，松动Ⅲ度。左上第一恒磨牙远中颊尖已萌，近中未萌。由以上条件可见，左上第二乳磨牙松动的主要原因是（）

A.外伤

B.牙周病

C.根尖周炎

D.替牙期正常松动

E.左上第一恒磨牙异位萌出

答案

参考答案：E

解析：题干信息：患儿7岁，左上第二乳磨牙近中龋损，探无不适，叩诊（-），松动Ⅲ度，咬合不适，牙龈正常，左上第一恒磨牙远中颊尖已萌，近中未萌。左上第一恒磨牙异位萌出有关的临床表现，符合上述临床特点，因而正确的答案选择应当为E，而其他病因的临床表现不能与信息中的特点完全吻合。

单项选择题 B1型题

用于确诊实验的分析方法，必须有较高的（）。

A.诊断灵敏度

B.诊断特异性

C.阳性结果的预示值

D.阴性结果的预示值

E.实验的总有效率
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阅读理解
Have you ever considered all the English expressions that include words about clothes? Let’s see if I can name a few proverbs “off the cuff” since I haven’t prepared for it.
English expressions with “pants”
People wear pants to cover the lower part of their bodies. We sometimes say that people who are restless or nervous have “ants in their pants.” They might also “fly by the seat of their pants” -- they use their natural sense to do something instead of their learned knowledge. Sometimes, people may “get caught with their pants down” -- they are found doing something they should not be doing. And, in every family, one person takes control. Sometimes a wife tells her husband what to do. Then we say “she wears the pants in the family.”
When people what to say something about money
Pants usually have pockets to hold things. Money that is likely to be spent quickly can “burn a hole in your pocket.” Sometimes you need a belt to hold up your pants. If you have less money than usual, you may have to “tighten your belt” -- you may have to live on less money and spend your money carefully. But once you have succeeded in budgeting your money, you will have that skill “under your belt.”
I always praise people who can save their money and not spend too much. I really “take my hat off to them.” Yet, when it comes to my own money, I spend it “at the drop of a hat” -- immediately, without waiting. And sadly, you cannot “pull money out of a hat” -- you cannot get money by inventing or imagining it.
English expressions with “shoes”
Boots are a heavy or strong kind of shoes. People who are “too big for their boots” think they are more important than they really are. I dislike such people. I really do. You can bet your boots on that!
Yet, truly important people are hard to replace. Rarely can you “fill their shoes” -- or replace them with someone equally effective.
English expressions with “shirt”
My father is an important person. He runs a big company. He wears a suit and tie and a shirt with sleeves that cover his arms. Some people who do not know him well think he is too firm and severe. They think he is a real “stuffed shirt.” But I know that my father “wears his heart on his sleeve” -- he shows his feelings openly. And, he knows how to “keep his shirt on” -- he stays calm and never gets angry or too excited.    
 
小题1:What is this passage mainly about?
A．How to say English correctly and properly.
B．Why English expressions include words about clothes.
C．Which words can be used to describe my father.
D．What people mean when they use some proverbs.
小题2:Which of the following proverbs are not related to money?
A．tighten one’s beltB．burn a hole in one’s pocket
C．get caught with their pants downD．take one’s hat off to them
小题3:Tim often considers himself the most important person in the world , which is far from the truth .We may say ____.
A．he is “too big for their boots”.
B．he “bet his boots on that ”.
C．he “ fill their shoes”.
D．he “wears his heart on his sleeve ”.
小题4:If you want to praise somebody for his calmness when facing danger , you may say ___.
A．“You really fill your shoes”
B．“Awesome ! You wear your heart on your sleeve!”
C．“Amazing !How can you keep your shirt on at that time!”
D．“Cool! You are truly a stuffed shirt”.
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