储罐区低倍数泡沫灭火系统按泡沫喷射形式不同,分为()。
A.液上喷射系统
B.半液上喷射系统
C.液中喷射系统
D.液下喷射系统
E.半液下喷射系统
参考答案:A, D, E
— Hi, Maria! I got the first place in the exam.
— ________! Everyone knows you cheated and you just copied Tony's paper. [ ]
A. Congratulations
B. Come on
C. Good luck
D. Cheer up
- How about having a picnic in the park on Sunday?
- ___________ . Whatever you want to do is fine with me.
A.You’re welcome
B.It’s boring
C.It’s up to you
D.It depends