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【判断题】
科目汇总表是根据各种记账凭证编制的。()
A.
正确
B.
错误
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举一反三
【单选题】现浇钢筋混凝土框架结构中竖向钢筋的连接 ,宜采用( )
A.
闪光对焊
B.
电弧焊
C.
电渣压力焊
D.
电阻点焊
【简答题】设有一台500kVA、50Hz、三相变压器、Dyn连接(上列符号的意义为一次绕组接成三角形,二次绕组接成p42:2-3设有一台500kVA、50Hz、三相变压器、Dyn连接(上列符号的意义为一次绕组接成三角形,二次绕组接成星形并有中线引出),额定电压为10000/400V(上列数字的意义为一次额定线电压10000V,二次额定线电压为400V,以后不加说明,额定电压均指线电压); (1)试求一次额定...
【简答题】4-2 三绕组变压器的一次绕组接额定电压运行时,二次绕组负载发生的变化是否会对三次绕组的端电压产生影响?为什么?
【单选题】现浇钢筋混凝土框架结构中竖向钢筋的连接宜采用( )进行焊接。
A.
电渣压力焊
B.
闪光对焊
C.
电弧焊
D.
电阻焊
【单选题】Because of the reduction of air pollution, this city now is a good place ______.
A.
where to live
B.
which to live
C.
to live in
D.
to be lived
【单选题】Because of the reduction of air pollution, this city now is a good place ______.
A.
to live in
B.
to be lived
C.
where to live
D.
which to live
【简答题】Sports stadiums now becomes a source of noise pollution because of ______.
【单选题】The automobile is now the main cause of air pollution.
A.
Y
B.
N
C.
NG
【单选题】Because of the reduction of air pollution, this city now is a good place _______
A.
where to live
B.
which to live
C.
to be lived
D.
to live
【单选题】Because of the reduction of air pollution, this city now is a good place ______.
A.
where to live
B.
which to live
C.
to live
D.
to be lived
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