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【简答题】
为什么三相异步电动机的功率因数cosφ1总是滞后性质的?
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Why does the author say space projects are practical?
A.
Because they make science exciting.
B.
Because they promote economic growth.
C.
Because they increase Americas national power.
D.
Because they show what technology can bring.
【单选题】On hearing the news that they had won the match, the students shouted in___________ voices.
A.
exciting, exciting
B.
excited, excited
C.
excited, exciting
D.
exciting, excited
【单选题】顾客在购买眼镜时,总是把商品的质量、价格、款式、商标、包装等综合在一起,形成对商品的整体印象,这是()的反映。
A.
知觉的选择性
B.
知觉的整体性
C.
知觉的理解性
D.
知觉的恒常性
【单选题】His staff like working for him because______.
A.
they are paid well
B.
they find it an exciting place to work
C.
they are involved in making decisions
【单选题】---What do you think of the book ? --- I don’t like it at all . It’s _____ interesting _____ exciting .
A.
neither , nor
B.
not , but
C.
not only , but also
D.
either , or
【简答题】对病人不一定有助益，可能违背医学伦理学有利原则的做法是（ ）
【单选题】From the _____ expression on her face, we knew that she was very _____ with the result. [ ]
A.
exciting; pleasing
B.
exciting; pleased
C.
excited; pleased
D.
excited; pleasing
【简答题】Part B (10 points) Almost every day we see something in the papers about the latest exciting developments in the space race. Photographs are regularly flashed to the earth from thousands and even mill...
【单选题】Cycling isn’t _________ climbing, but both of them are interesting.
A.
as exciting as
B.
as more exciting as
C.
as excited as
D.
as more excited as
相关题目：
【单选题】顾客在购买眼镜时,总是把商品的质量、价格、款式、商标、包装等综合在一起,形成对商品的整体印象,这是()的反映。
A.
知觉的选择性
B.
知觉的整体性
C.
知觉的理解性
D.
知觉的恒常性