搜题请搜索小程序“爱下问搜题”
问题 多项选择题 案例分析题

患者，男性，70岁，74kg。13年前行二尖瓣生物瓣置换术。入院前两个月出现过短暂头晕；一周前自己突然闻及响亮的心脏杂音同时伴有胸闷、气促、尿少、乏力等症状；查体心尖部闻及Ⅲ级鸥鸣样收缩期杂音。心功能Ⅲ～Ⅳ级。心电图示：窦性心律，Ⅰ度房室传导阻滞。胸部X片示：两肺淤血并间质性肺水肿，右上腔静脉影增宽，肺容积缩小，心脏呈二尖瓣-主动脉型。超声心动图示：二尖瓣生物瓣撕裂反流；肺动脉高压（中度）。拟在全身麻醉下行二尖瓣瓣膜置换术。

该患者影像学检查心脏形态改变主要为（）。

A.右心房明显扩大

B.左心房明显扩大

C.右心室缩小

D.左心室明显增大

E.左心室缩小，而右心室增大

F.左心房增大而左右心室大小无明显改变

G.仅左心房和右心室增大

答案

参考答案：B, D

阅读理解

Many students in China are learning English. Some of these students are small children. Others are teenagers. Many are adults. Some learn at school, others study by themselves. A few learn English language over the radio, on television, or in films. One must work hard to learn another language.Why do all these people want to learn English? It is difficult to answer that question. Many boys and girls learn English at school because it is one of their subjects. They study their own language and maths and English ... Some people learn English because it is useful for their work. Many people often learn English for their higher sutdies, because at college or university(大学) some of their books are in English. Other people learn English because they want to read newspaper and magazines in English.

小题1:Many students in China are learning English, aren't they? ____.

A．No, they aren't

B．No, they are

C．Yes, they are

D．Yes, they aren't小题2:If one wants to learn another language well, he must ____.

A．learn at school

B．study by himself

C．work hard

D．study easily小题3:The sentence "It is difficult to answer that question" means ____.

A．that question is not difficult to answer

B．that question is difficult to answer it

C．it is difficultly to answer that question

D．it is hard to answer that question小题4:"Their own language" means ____.

A．Chinese

B．English

C．French

D．Japanese小题5:What's the Chinese of "study by themselves"?

A．和他们一起学习

B．自学

C．向他们学习

D．通过学习
查看答案
填空题

已知扇形的面积为2，扇形圆心角的弧度数是4，则扇形的周长为（    ）。
查看答案