问题
选择题
下列各组物质，前者属于混合物，后者属于化合物的是 [ ]
A．矿泉水 液氧
B．生理盐水 氯化钠
C．干冰 天然气
D．生铁 不锈钢
答案
答案：B
搜题请搜索小程序“爱下问搜题”
下列各组物质，前者属于混合物，后者属于化合物的是 [ ]
A．矿泉水 液氧
B．生理盐水 氯化钠
C．干冰 天然气
D．生铁 不锈钢
答案：B
| 完成对话。 | |
| TOMY: Excuse me. Are you Sandra Li? SANDRA: 1______ TOMY: I'm Tony Liang. I'm in Grade Eight. We are publishing a newspaper this year, and I'm the sports editor. SANDRA: 2______ How can I help you, Tony? TOMY: Well, I'd like to interview you about the girls' table tennis team, please. SANDRA: Yes, all right. 3______ TOMY: Could we meet today after school? SANDRA: No, 4______, I'm afraid. What about tomorrow, in the lunch hour? TOMY: Yes, that would be fine. 5______? SANDRA: All right. I'll meet you in Room 7, at about half past twelve. TOMY: Right. Thanks very much, Sandra. Goodbye. SANDRA: Bye.
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