题目

请听下面长对话,回答以下小题。【1】What do we know about Julie?A.She is good at decorating. B.She has been ill since last week.C.She is in her last year at university.【2】When is the woman’s wedding?A.On Wednesday. B.On Thursday C.On Friday.【3】What is the probable relationship between the speakers?A.Brother and sister. B.Uncle and cousin. C.Father and daughter. 答案:【答案】【1】B【2】C【3】A【解析】【原文】W: Hi David, did you talk to Mum yesterday?M: Yes. She was worried about Julie because she was sick last week.W: Oh dear, she must be so tired studying for the coming exams. How is she now?M: She’s better. It is her last year, and she is working hard to get into the university. What about you? What have you been doing? W: I have been pr在2升的密闭容器中,反应物的物质的量为3mol,经过20s后,它的物质的量变成了1mol,在这20s内它的反应速率为(  ) A、0.1 mol/(L?S)B、0.05mol/( L?min)C、0.05mol/(L?s)D、0.8mol/(L?S)
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