重力
参考答案:
地球所有质量对任一质点所产生的引力与该点随地球相对于惯性中心运动而引起的的离心力之合力称之为重力。
66. light___________ (音乐) makes people relaxed. 小题1: ___________
67. Most children like___________ (甜的)food. 小题2: ___________
68. He spends more than an hour___________(锻炼) every day. 小题3: ___________
69. You can ask me for help___________ (无论何时) are in trouble.小题4: ___________
70. After the accident,she could___________ (几乎不)speak. 小题5:___________
肺与大肠通过经脉的相互络属而形成密切的联系。