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【单选题】
三相异步电动机的转速 n 为( )。A.
60×f1/p
B.
60p/f1(1-S)
C.
f1/60p
D.
以上都不是
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【简答题】When John and Victoria Falls arrived in New York City for one-year stay, they did not bring very many things with them. They had planned either to live in a furnished apartment or to buy used furnitur...
【简答题】When did the new rules come out? ______________________________________
【单选题】When John and Victoria Falls arrived in New York from London for a one-year stay, they did not bring many things with them. They had planned either to live in a furnished (配备家具)apartment or to buy use...
A.
a new way of buying furniture
B.
a new way of moving from place to place
C.
why some people rent their furniture
D.
how some people rent their furniture
【单选题】It can be inferred from the passage that more people will______.
A.
use non-renewable and renewable energies
B.
stick to the use of local utility as before
C.
not use any renewable energies at all
D.
use renewable energies for household only
【单选题】Into the flat _______，who was quite excited when everyone shouted“Happy New Year'．
A.
did Aziz walk
B.
Aziz walked
C.
Aziz did walk
D.
walked Aziz
【简答题】When did New Year pictures win popularity?A. Around 1600 A.D.. B. Around 1500 A.D.. C. Around 1600 B.C.. D. Around 1500 B.C..
【单选题】When did Romans celebrate New Year’s Day?
A.
On the first of January.
B.
On the first of March.
C.
Around the middle of May.
D.
Around the middle of December.
【单选题】From the example of two people walking along, one an economist and the other a non-economist, we can see that______.
A.
the economist may apply the view of profit opportunities excessively
B.
the economist has quicker insights than the non-economist
C.
the economist has a better understanding of profit opportunities than the non- economist does
D.
profit opportunities appear even in our daily life
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