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【单选题】
不满2周岁的婴儿乘飞机旅行时,票价为成人票价的( ),不单座位。A.
0.1
B.
0.25
C.
0.5
D.
0.7
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【简答题】下图所示是某款三相异步电动机的铭牌,请根据该铭牌中的数据回答下列问题: 1) 基座中心高度是多少? 2)该款电动机的极数和极对数分别是多少? 3) 该款电动机的同步转速是多少? 4)该款电动机的额定转速是多少?额定功率是多少? 5)试计算转差率。 6)连接方法是什么? 7)该款电动机的额定电压是多少?额定电流是多少?额定负载时的功率因数是多少? 8)绝缘等级是多少?运行方式是什么? 9)试计算其额...
【单选题】In most sectors of the economy, it is the seller who attempts to attract a potential buyer with various inducements of price, quality and utility, and it is the buyer who makes the decision. In the he...
A.
to criticize doctors for exercising too much control over patients
B.
to analyze some important economic factors in health care
C.
to urge hospitals to reclaim their decision-making authority
D.
to inform. potential patients of their health care rights
【简答题】According to the author, how does the blog attract more readers?
【简答题】In most sectors of the economy, it is the seller who attempts to attract a potential buyer with various induction of price, quality and utility, and it is the buyer who makes the decision. In the heal...
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