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【简答题】
三相异步电动机的调速方法有三种,分别是()调速()调速()调速
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举一反三
【简答题】what is the WTO 's key role?what other roles does it play?
【单选题】I’ve lived here for about _______.
A.
two and a half year
B.
two and a half years
C.
two year and a half
D.
two years and half
【单选题】听力原文： In the 1940's and 1950's, it was not likely that a young black teenager from New York's Harlem would ever have the chance to play in the world's biggest tennis tournaments. But Althea Gibson did...
A.
New York City.
B.
Harlem.
C.
Silver, South Carolina.
D.
California.
【单选题】—I have ____ here for two months. —So you ____ here since two months ago. [ ]
A.
come, came
B.
been, have been
C.
been, come
D.
come, have been
【简答题】_______'s play________________successfully portrays the Wingfields as a family of escapists who are indulged in their own illusory worlds.
【单选题】The town is about _________ ride from here.
A.
two hour
B.
two hour's
C.
two hours'
D.
two-hours
【单选题】The idea of opening a new cinema here was not wise, as there are two here already, _________ usually half-empty.
A.
neither
B.
none
C.
either
D.
both
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