改善劳动条件的根本措施是
A．加强通风排毒B．做好个人防护C．技术革新和工艺改革D．制订安全操作规程E．经常性卫生监督
参考答案：C
下列皇帝在历史上出现的先后顺序是
①汉景帝②汉高祖③汉武帝④汉文帝 [ ]
A．①②③④
B．④③①②
C．②④①③
D．③②④①
补全对话
A: Good morning, sir. 1
B: I'd like to buy a blue jacket. Do you have any blue jackets?
A: Yes. 2
B: I want size M.
A: Here you are.
B: Can I try it on?
A: Sure. Is it all right?
B: Yes, I like it very much. 3
A: 360 yuan.
B: That's a bit expensive. Do you have any other kind? I want a cheaper one.
A: What about this one? It's only 120 yuan.
B: OK. 4 Here's the money.
A: 5 Goodbye, sir.
1.________ 2.________ 3.________ 4.________ 5.________
