问题
单项选择题 A1/A2型题
吸入性损伤的早期诊断，具有临床意义的表现是（）。
A.呼吸困难
B.颜面部炭灰
C.颜面部烧伤
D.烦躁不安
E.声嘶及喘鸣
答案
参考答案：E
搜题请搜索小程序“爱下问搜题”
吸入性损伤的早期诊断，具有临床意义的表现是（）。
A.呼吸困难
B.颜面部炭灰
C.颜面部烧伤
D.烦躁不安
E.声嘶及喘鸣
参考答案：E
| 完形填空。 | |||
| Breakfast is very important. It is one of 1 of the day. To keep healthy, everyone should 2 a good breakfast . 3 the right food is necessary for good health . We way have eggs, bread, milk, etc. (等等) 4 breakfast . Many students go to school without breakfast 5 they get up late or their parents don't cook for them . It's 6 for their health. 7 breakfast children may not grow fast and may not study and play very well at school. They may 8 . And when they're ill, they will 9 a long time in recovering (恢复). I think everyone should have some good 10 habits . | |||
| ( )1. A. important meals ( )2. A. to have ( )3. A. Eating ( )4. A. in ( )5. A. why ( )6. A. good ( )7. A. Without ( )8. A. is ill ( )9. A. spend ( )10. A. health | B. the most important meals B. having B. To eating B. with B. because B. nothing B. With B. ill B. take B. healthy | C. the most important meal C. have C. Eats C. on C. so C. bad C. Under C. are ill C. cost C. healthily | D. most important meals D. has D. Eat D. for D. but D. better D. No have D. be ill D. make D. bad |
N2↑+：CH2；碳烯与烯烃或苯环能起加成反应，生成含三元环的化合物：
。