题型:问答题 简答题 以下说法违背科学事实的是( )A.农业上用硫酸铜作为杀菌剂B.氧、硅、铝、铁都属于金属元素C.日晒、风吹都有利于食盐水中氯化钠晶体的析出D.医疗上常用70%~75%的酒精溶液作为消毒剂 查看答案
题型:问答题 简答题 -I'm very tired these days because of studying for exams.-Why not __________ music. It can make you __________.[ ]A. listen to, relaxingB. to listen to, relaxC. listening to, relaxD. listen to ,relax 查看答案