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【单选题】
副边三相绕组中任何一相绕组的首尾端反接,副不到对称的三相电压,特别是在将副边绕组三角形之前,测一下三角形的开口电压,当开口电压为______时,封闭的三角形。A.
相电压
B.
线电压
C.
2倍相电压
D.
零
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举一反三
【简答题】Four students answered the teacher’s questions s______.
【单选题】Questions 37-40 Which FOUR of the following statements about termite mounds are true? Write the appropriate letters on your answer sheet in any order.
A.
Most mounds are miler than a human.
B.
A species of termite builds a mound for only one reason.
C.
Mounds are constructed from many different materials.
D.
Mounds with rounded tops are useful in wet climates.
E.
Termites that build magnetic mounds can detect magnetism.
F.
The temperature in a magnetic mound is fairly constant.
G.
Very little of a magnetic mound faces the sun during the middle of the day.
H.
Termites live in the east and west sides of mounds at different times of day.
【多选题】which four questions need to be answered in order to have a good strategy?
A.
where do we compete?
B.
who are we competing with?
C.
what unique value do you bring to the table in those markets?
D.
what are our objective?
E.
how do we sustain our ability to provide that unique value?
F.
resources and capabilities do you utilize to deliver that value?
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