本题目来源于试卷: .Gravity..，类别为 美国物理杯赛(Physics Bowl)
[单选题]
10.42: A comet moves in an ell qu l(jb 5.;apgiptical orbit a u ;,knnewta)3round the sun. As the comet moves from aphelion (the point on the orbit ak3)tnn u;,w efarthest from the sun) to perihelion (the point on the orbit closest to the sun), which of the following results is true?
A.
B.
C.
D.
E.
参考答案: B
本题详细解析:
暂无
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