柴油机的电控系统，最主要的功能是对（）等的电气控制.
A.进气量
B.喷油时刻
C.喷油量
D.废气再循环
E.涡轮增压
参考答案：B, C, D, E
连词成句
1. your room, mind, cleaning, would, you
2. get annoyed, I, when, talks to me, someone, reading, I am, while
3. to get a Snoopy doll, for two hours, in line, stood, we
4. is, the, in, not, etiquette, same, every culture
5. be, careful, we, have to, very, we, people, how, criticize
_____ we choose healthy food for our main meals, we probably still need to exercise now and then.
A．Unless
B．As though
C．Until
D．Even if
