【单选题】Brian says the trend nowadays is for his customers to
A.
buy a sandwich to eat at their desk.
B.
smoke in the street at lunchtime.
C.
take a couple of breaks in the day.
【简答题】A.They cannot sleep well. B.They cannot eat well. C.They tend to bite each other. D.They tend to reproduce more.
【简答题】电磁流量计是利用()原理制成的流量测量仪表。
【单选题】Mike says he needs ______. [ ]
【判断题】选择研究题目越大越好,更加容易获得资料和做出成绩。
【单选题】下列说法正确的是( )
D.
石油裂解和油脂皂化都是由高分子生成小分子的过程
【判断题】绘组合体三视图时,一般是加深后再标注尺寸
【简答题】阅读理解 Food is very important. Everyone needs to eat well if he wants to have a strong body. Our minds also need a kind of food. This kind of food is knowledge(知识). When we are very young, we start gett...