问题
单项选择题
患儿男性，6岁，因活动后气短就诊，查体发现胸骨左缘第2肋间可及收缩期震颤，并可及4/6收缩期杂音，P2明显减弱
患儿接受右心导管检查，发现右室窦部与漏斗部之间存在约25mmHg的压差，这说明
A．右心室窦部存在病变
B．右心室漏斗部存在病变
C．肺动脉瓣存在病变
D．主肺动脉存在病变
E．肺动脉分叉部存在病变
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
患儿男性，6岁，因活动后气短就诊，查体发现胸骨左缘第2肋间可及收缩期震颤，并可及4/6收缩期杂音，P2明显减弱
患儿接受右心导管检查，发现右室窦部与漏斗部之间存在约25mmHg的压差，这说明
A．右心室窦部存在病变
B．右心室漏斗部存在病变
C．肺动脉瓣存在病变
D．主肺动脉存在病变
E．肺动脉分叉部存在病变
参考答案：B
| 阅读理解. |
| Dear editor, I live in a beautiful city. Many visitors come to my city. There are so many colorful peacocks here. The peacocks mostly live on the grassland of Dongfeng Square. They are given food freely by visitors. They usually throw food to them, and don't think about at all whether the fool is right or not. Some of the peacocks became ill, some even died after eating the bad food given by the visitors. I'm sure most of the visitors who throw food to the peacocks really like the birds, but don't realize that they may be doing them harm. The visitors should be told that what they have done is very harmful to the birds, and this kind of thing must be stopped. Perhaps we can build some small shops beside Dongfeng Square to sell peacock food. For us every person, it is our duty to give morelove to these beautiful birds and to look after, them carefully. Yours , Sun Yan |
| 1. Many visitors came to the writer's city to . |
| A. do some shopping B. see beautiful peacocks C. throw them some bad food D. eat nice food |
| 2. Some peacocks became ill and died because some visitors . |
| A. didn't give them any food B. gave them too much food C. threw them some bad food D.loved them and played with them |
| 3. Some shops can be built beside Dongfeng Square so that they may . |
A. sell food for visitors |
| 4. From the passage we know people should . |
| A. live and play with the birds B. stop the birds from eating too much C.give right food to the birds D. give more food to the birds |
| 5. We can guess the writer of the letter, Sun Yan, may be a . |
| A. visitor B.shopkeeper C.doctor D.student |