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【判断题】
电路中某两点的电压具有相对性,当参考点变化时,电压随之发生变化。A.
正确
B.
错误
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【简答题】what is the WTO 's key role?what other roles does it play?
【单选题】听力原文： In the 1940's and 50'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 p...
A.
New York City.
B.
Harlem.
C.
Silver,South Carolina.
D.
California.
【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】听力原文： In the 1940's and 50's, it was not likely that a young black teenager from New York's Harlem would ever have the chance to play in tile world's biggest tennis tournaments. But Althea Gibson did ...
A.
New York City.
B.
Harlem.
C.
Silver, South Carolina.
D.
California.
【简答题】It 's unacceptable for a mother to leave her child ________to play computer s. A alone B．lonely C．lone D．loneliness
【单选题】听力原文： In the 1940's and 50's, it was not likely that a young black teenager from New York's Harlem would over have the chance to play in the world's biggest tennis contests. But Althea Gibson dill pla...
A.
New York City.
B.
Harlem.
C.
Silver, South Carolina.
D.
California.
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