题目

—Your sister nearly ________ all her spare time to her study during the three years. —That's right, or she ________ the first place in her school in the College Entrance Examination. A．devoted; wouldn't have taken        B．spent; wouldn't have taken C．hadn't devoted; hadn't taken         D．hadn't spent; couldn't take 答案：A如图是宿迁晚报刊登的《“拾金”不昧》的漫画．（1）此漫画中包含一些物理知识，请你说出其中二点：①________；②________．（2）从物理学角度说说这种不文明行为的危害？