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(A)referring to 
(B) depending on 
(C) looking into 
(D)tearing from

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統計： A(264), B(596), C(148), D(86), E(0) #1807511

詳解 (共 1 筆)

#2884454

There are two basic classes of forces, 38depending on whether the agent touches the object or not. Contact forces are forces that act on an object by touching it at a point of contact. The majority of forces are contact forces. 

依據能動者是否接觸物體，力可以分為兩種。接觸力是透過碰觸物體而施展。大部分的力都是接觸力。 
A referring to 涉及；與...相關

B depending on 依靠

C looking into 調查、研究

D tearing from 撕掉 

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