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【单选题】
太阳对行星的引力与行星对太阳的引力大小相等,其依据是 ( )A.
牛顿第一定律
B.
牛顿第二定律
C.
牛顿第三定律
D.
开普勒第三定律
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举一反三
【单选题】I have worked here since I _________ from college.
A.
graduate
B.
graduated
C.
has graduated
D.
was graduating
【简答题】连词成句。 your, what, like, is, new, teacher, art (?) _____________________________________________________
【单选题】I have worked here since I ______from college.
A.
graduate
B.
will graduate
C.
graduated
D.
graduating
【简答题】连词成句。 your，what，name，is ______________________
【单选题】I have worked here since I __________ from college.
A.
graduates
B.
graduate
C.
am graduating
D.
graduated
【简答题】连词成句。 1. this, is, What (?) ___________________________ 2. is, it, desk, a (.) ___________________________
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