问题
单项选择题
有关原发性肺脓肿，下列哪项是不正确的
A．常系吸入口咽分泌物随带的细菌感染所致
B．为多种化脓性细菌的混合感染
C．多数为厌氧菌感染
D．急性病例常有杵状指或肥大性肺性骨关节病
E．慢性肺脓肿易出现大咯血
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
有关原发性肺脓肿，下列哪项是不正确的
A．常系吸入口咽分泌物随带的细菌感染所致
B．为多种化脓性细菌的混合感染
C．多数为厌氧菌感染
D．急性病例常有杵状指或肥大性肺性骨关节病
E．慢性肺脓肿易出现大咯血
参考答案：D
| 完形填空。 | ||||
| What should we do to keep healthy? One important rule is to exercise_1_. The Fang family try to exercise every day. Mr Fang _2_exercise in the morning because he must get to work at exactly seven o'clock. But he runs every evening. He walks a lot, _3_. He walks to school every day, and after school he _4_different sports with his friends. Mr Fang goes to a yoga (瑜加功) class _5_. But it wasn't _6_this way. Last year Mr and Mrs Fang used to (过去常常) _7_everywhere in their car, even to the drugstore (药店) two blocks (街区)away. They thought they had to use the car all the time. They wouldn't walk. The Fangs all _8_better now. They believe they shouldn't be lazy. We _9_exercise every day, but we should try our _10_to exercise as often as possible. | ||||
|