-- Does my question sound enough? -- I don’t think so. You can ask more by using “could” instead of “can”. A. politely; politely B. politely; polite C. polite; politely D. polite; polite 答案:C“以崇尚科学为荣,以愚昧无知为耻”,日常生活中很多问题都涉及化学知识.下列认识不符合科学的是A.通常用含单质碳的墨水书写文书档案,以便长期保存B.在锁孔里放入少量铅笔粉末,能使锁的开启变得更灵活C.餐具上沾有油污时可以用洗涤济清洗是利用洗涤剂的乳化功能D.生活中长期饮用纯洁水对人体是有利的