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【单选题】
脚手架立杆顶端栏杆宜高出女儿墙上端( )。
A.
0.5m
B.
1.0m
C.
1.5m
D.
2.0m
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参考答案:
举一反三
【单选题】副交感神经节后纤维的递质是
A.
乙酰胆碱
B.
去甲肾上腺素
C.
5-羟色胺
D.
多巴胺
【单选题】电阻串联具有()作用。
A.
分流
B.
分压
C.
增流
D.
增压
【单选题】副交感神经节后纤维的递质是
A.
乙酰胆碱
B.
去甲肾上腺素 
【判断题】在电路中,将电阻串联后具有分压作用而将电阻并联后具有分流作用。
A.
正确
B.
错误
【单选题】______was regarded as America s poet laureate and invited to read his poem at the inauguration of President kennedy.
A.
T. S. Eliot
B.
E. E. Cummings
C.
Robert Frost
D.
Ezra Pound
【单选题】Thomas Jefferson was inaugurated (举行就职典礼) on March 4, 1801. He was the first President to take the oath of office (宣誓就职) in the nation's permanent capital, Washington, D.C. Although Washington was a n...
A.
The Presidential Palace was not located there.
B.
It contained many old buildings in 1801.
C.
It was not the first capital of the United States.
D.
Thomas Jefferson was a newcomer there in 1801.
【单选题】Recognize the Figures of Speech in the Following Sentences and Appreciate how they are used. 1 ) Let both sides explore what problems unite us instead of belaboring those problems which divide us. ( J...
A.
contrast
B.
couplet
【判断题】串联电阻具有分流作用,并联电阻具有分压作用。
A.
正确
B.
错误
【判断题】电阻的串联具有分流作用。
A.
正确
B.
错误
【单选题】下图所示零件是:
A.
圆柱销
B.
挡圈
C.
开口销
D.
none
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