問題詳情

2. What is so special about gravity?
(A) We can feel it with our hands.
(B) We can’t find it with our eyes.
(C) It can make things fly in the sky.
(D) It can pull the planets to the Sun.

參考答案

答案:B
難度:計算中-1
書單:沒有書單,新增

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