問題詳情

請依下文回答第 36 題至第 40 題：If you pull on a door handle, the door opens. If you sit on a bed, the springs in the mattress compress and, 36 ofthe compression, exert an upward force on you. We know from experiences that some sort of force is 37 to dothese jobs. There are two basic classes of forces, 38 whether the agent touches the object or not. Contact forcesare forces that act on an object by touching it at a point of contact. The majority of forces are contact forces.Long-range forces are forces that act on an object 39 physical contact. Magnetism is an example of a long-rangeforce. You have undoubtedly held a magnet 40 a paper clip and seen the paper clip leap up to the magnet. Acoffee cup released from your hand is pulled to the earth by the long-range force of gravity.
36
(A)as a consequence 
(B)at the expense 
(C)on the verge 
(D)for a change

參考答案

答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

內容推薦

內容推薦