你可能感兴趣的试题
乙醚的沸点 乙醇在水中的溶解度
氢化镁的晶格能 DNA的双螺旋结构
电解饱和食盐水可制得金属钠
海带提碘只涉及物理变化
海水提溴涉及到氧化还原反应
海水提镁涉及到复分解反应
eat up give away do without deal with
to; by by; to for; to in; on
access passage way approach
leave left to leave leaving
added up added added to added up to
to have made making to make to be making
came was coming had come would come
甲午中日战争 八国联军侵华战争 日俄战争 抗日战争
石英只能用于生产光导纤维
从海水中提取物质都必须通过化学反应才能实现
为了增加食物的营养成分，可以大量使用食品添加剂
“地沟油”禁止食用，但可以用来制肥皂
are crazy about have been crazy about were crazy about had been crazy about
湘公网安备 43130202000226号