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问题 单项选择题 A1/A2型题

女性，47岁，心慌胸闷1个月就诊，心脏听诊发现第二心音固定分裂，最常见的疾病是（）

A.完全性房室传导阻滞

B.风心病二尖瓣狭窄

C.房间隔缺损

D.甲亢性心脏病

E.结核性心包炎

答案

参考答案：C

问答题

在用伏安法测电阻的实验中，所用电压表的内阻约为20kΩ，电流表的内阻约为10Ω，选择能够尽量减小误差的电路图接线进行实验，读得的各组数据在坐标图上描点，舍去不合理的点，得到如图所示的I-U图线．

（1）请由I-U图线求得该电阻的阻值Rx=______Ω．（保留两位有效数字）；

（2）在方框内画出此实验的电路原理图．
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阅读理解
Welcome to one of the largest collections of footwear(鞋类)in the world that will make you green with envy. Here at the Footwear Museum you can see exhibits(展品)from all over the world. You can find out about shoes worn by everyone from the Ancient Egyptians to pop stars.
Room 1
The celebrity(名人)footwear section is probably the most popular in the entire museum. Started in the 1950s there is a wide variety of shoes and boots belonging to everyone from queens and presidents to pop stars and actors! Most visitors find the celebrities' choice of footwear extremely interesting.
 
 
Room 2
Most of our visitors are amazed—and shocked—by the collection of “special purpose” shoes on exhibition here at the Museum of Footwear. For example, there are Chinese shoes made of silk that were worn by women to tie their feet firmly to prevent them from growing too much！
 
Room 3
As well as shoes and boots, the museum also exhibits shoe­shaped objects. The variety is unbelievable. For example, there is a metal lamp that resembles a pair of shoes, and Greek wine bottles that look like legs！
 
The Footwear Library
People come from all over the world to study in our excellent footwear library. Designers and researchers come here to look up information on anything and everything related to the subject of footwear.
小题1:Where would you find a famous singer's shoes?
A．Room 1.B．Room 2. C．Room 3.D．The Footwear Library.
小题2:All exhibits each room ________.
A．share the same theme B．have the same shape
C．are made of the same materialD．belong to the same social class
小题3:Which of the following is true according to the text?
A．The oldest exhibits in Room 1 were made in the 1950s.
B．Room 2 is the most visited place in the museum.
C．Room 3 has a richer variety of exhibits than the other two.
D．Researchers come to the Footwear Library for data. (资料，数据)
小题4:The purpose of the text is to get more people to ________.
A．do researchB．design shoes C．visit the museumD．follow celebrities
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