【判断题】摩尔吸收系数与溶液的浓度、液层的厚度有关
【多选题】从詹成老师的英语学习体会中告诉我们( )
【单选题】— Which one means you aren't allowed to park your car. — It's ______. [ ]
【单选题】--I hear you are not allowed to eat in class. ---Right. It’s one of the ___________in our school.
【单选题】若同一单位的很多用户都需要安装使用同一软件时,最好购买该软件相应的___。
【单选题】— I hear you are not allowed to eat in class. — Right. It's one of the _____ in our school. [ ]