The amount of gravitational attraction between two objects depends on

Câu hỏi :

The amount of gravitational attraction between two objects depends on the mass of the objects and____

A.what is the distance between them

B. thedistance between them is 

C. the distance between them

D. the distance what is between them

* Đáp án

* Hướng dẫn giải

Đáp án là C. “and” nối hai từ có chức năng như nhau, trước là danh từ “the mass of the objects” => sau cũng là cụm danh từ.

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