题目

补全对话。 A.Can I help you ? B.What color do you want ?C.Do you have a small one ? D.What about this one ?E.How much is it ?A:【1】 B:Yes, please . I want a skirt for my daughter .A:【2】 B:Green or blue .A: Look at the skirts over there (在那边) . We have different colors . Which(哪一个) do you want ? B: I think the green one is nice .【3】 A: It’s 150 yuan .B: Oh, it’s too expensive (太贵) .A: 【4】 . It’s only 60 yuan .B: It’s cheap (便宜的) , but it is big .【5】A: Yes . Here you are .分析能量变化示意图，下列选项正确的是（　　）A．S（s，单斜）+O2（g）=SO2（g）△H=+297.16 kJ?mol-1B．S（s，单斜）+O2（g）=SO2（g）△H=-296.83 kJ?mol-1C．S（s，正交）+O2（g）=SO2（g）△H=-296.83 kJ?mol-1D．单斜硫比正交硫更稳定