问题 单项选择题 A3/A4型题

女性,32岁。反复发热在37.5~38℃1个月,伴关节肌肉酸痛。查体:轻度贫血,心界不大,心率90/min,心尖有收缩期吹风样杂音三级,诊为风湿性心脏病,二尖瓣关闭不全,发热待查。

最有助于诊断感染性心内膜炎的检查是()

A.胸部X线摄片

B.心电图

C.超声心动图

D.心血管造影

E.心脏CT

答案

参考答案:C

判断题
阅读理解

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。

     People know the dangers of fires. It's good for a family to learn how to prepare for a fire. Here are some

suggestions:

     Put a smoke alarm in the house. Smoke from a fire causes the alarm to go off. 1._____ The sound tells

everyone to leave the house at once.

     Make escape plans. You should know all the ways out of the house. If there is a fire, everyone follows

the plan to get out. Part of the plan is to check all the windows to make sure they can be opened easily.

     Buy fire extinguishers (灭火器) in the house. 2._____ 

     Practise for a fire at home now and then because it can teach children about fire safety, Everyone in the

family should know the following fire rules: 

     3._____ The fire can grow more quickly if you open the door.

     Stay close to the floor! 4._____ The best air is near the floor because smoke rises.

     What will you do if your hair or clothes start to burn? First, stop! 5._____ The fire bums faster because

of more air. Drop! Fall to the floor. Then roll! Turning over and over will make the fire go out. Put a blanket

around you to keep air away from the fire that may still be on you.

     There are many possible causes for fires. A wise family is ready all the time. If there is a fire, don't forget

to call 119 for help.

A. Don't run!

B. Everyone in the family should know how to use them.

C. Everyone should follow your plan.

D. Smoke can be more dangerous than fire.

E. The alarm makes a loud sound.

F. Open the windows!

G. Don't open a hot door!