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【单选题】
治疗急性肺水肿不当的是
A.
取坐位两腿下垂
B.
口服地
C.
高流量吸氧
D.
静注氨茶碱
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参考答案:
举一反三
【单选题】No sooner _____ the news than they rushed out into the street.
A.
they heard
B.
they had heard
C.
did they hear
D.
had they heard
【简答题】When Joseph and Mary arrived there, the inn had no room and so they were offered ________ where _______ was soon born, with angels proclaiming this news to shepherds who then disseminated the message ...
【单选题】电动汽车都采用的冷却形式区别在于冷却系统中有没有
A.
车载充电机
B.
电机控制器
C.
驱动电机
D.
动力电池
【单选题】已知4点序列x(n)=cos(πn),n=0,1,2,3,该序列的4点DFT为X(k),则X(0)=( )
A.
0
B.
1
C.
2
D.
4
【单选题】幽门梗阻所致的呕吐的特点为
A.
进餐后即刻发生
B.
剧烈呈喷射状
C.
多为宿食,常于夜间发生
D.
胃排空后小感轻松
E.
常无恶心先兆
【单选题】离散时间序列 x ( n )=cos(3πn/7-π/8) 的周期是 ( )
A.
7
B.
14/3
C.
14
D.
非周期
【单选题】(Paragraph 2) The whole nation was shocked by the news the next day, and psychologists had no answers to explain why these people didn’t help.
A.
Only people in New York heard about the murder.
B.
News about the murder traveled quickly.
C.
The murder was not shocking to psychologists.
【单选题】青色油墨在红灯光源照射下,呈( )。
A.
白色
B.
黑色
C.
红色
D.
青色
【判断题】类地行星包括水星、金星、地球和火星。()
A.
正确
B.
错误
【单选题】序列x(n)=cos(3 π n/8)的周期是( )。
A.
3
B.
8
C.
16
D.
不存在
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