慢性支气管炎的体征,下述选项中错误的是:() A.早期可无异常体征 B.急性发作期常

题型:单项选择题

问题:

慢性支气管炎的体征,下述选项中错误的是:()

A.早期可无异常体征

B.急性发作期常有散在干湿啰音

C.啰音多变,易变

D.常在背部出现固定性啰音

E.可有哮鸣音及呼气延长

考点:上海住院医师精神科呼吸内科呼吸内科题库
题型:单项选择题
选词填空:从方框中选择适当的单词并用其正确形式填空,完成短文。
seat   go     take      shout   soon   move   hard   put
Last week, my friend, Mike, decided to take a trip to Beijing by train. I   小题1: to the train station to see him off(为他送行).
He   小题2: a lot of luggage(行李)with him. So I got on the train with him and helped him   小题3: away his luggage. There were a lot of people on the train. Some of them had no   小题4: and they stood in the aisle(过道). When I tried to get off the train, one worker    小题5:, “The train is leaving now. Please get on the train as   小题6: as possible. ” Then many people tried to get on the train. It was   小题7: for me to move. Before I could get off, the train began to   小题8:. Then my friend said to me, “Why don’t you go to Beijing with me ? You will have a great time there. ” I thought it was not a bad idea. So I went to Beijing for the first time.
题型:单项选择题

具有小鼠红细胞受体的是()

A.中性粒细胞

B.巨噬细胞

C.T淋巴细胞和NK细胞

D.B淋巴细胞

E.K淋巴细胞

题型:单项选择题

2013年6月20日,航天员王亚平在运行的天宫一号内上了节物理课,做了如图所示的演示实验,当小球在最低点时给其一初速度,小球能在竖直平面内绕定点O做匀速圆周运动.若把此装置带回地球表面,仍在最低点给小球相同初速度,则(  )

A.小球仍能做匀速圆周运动

B.小球不可能做匀速圆周运动

C.小球可能做完整的圆周运动

D.小球一定能做完整的圆周运动

题型:单项选择题

三曹

题型:单项选择题

海市蜃楼

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