阿摩線上測驗
52. The Figure shows a planet moving about the sun in an elliptical orbit. Its speeds at the following four points shown in the Figure are 
, repsectively. Which of the following statement is correct? 
(A)
(B)
(C)
(D)
(E) none of the above
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統計： A(0), B(0), C(1), D(0), E(0) #3421247
統計： A(0), B(0), C(1), D(0), E(0) #3421247
