题型:阅读理解 阅读理解。 Advertisements Ⅰ HOUSE FOR SALE: Comfortable family home with large garden on north side of town. Three bedrooms, living room, kitchen, bathroom. Offers over £35,000. The Browns are looking for a new house. Mr Brown wants to live on the north side of the town nearhis work. Mrs Brown wants a house with four bedrooms. Their children don't care what the house is likeas long as the garden is big enough. 1. Why didn't the Browns buy the house in the advertisement? A. It was on the north side of the town. B. There weren't enough bedroom. C. There was no dining-room. D. The garden wasn't big enough. Ⅱ ASSISTANT (店员) WANTED for busy restaurant. Some evening and weekend work. All meals free. Ring 3320178. Ann has always wanted to work in a restaurant. She thinks it's an exciting place. The work is hard but she doesn't mind. She has to work in the evenings and at weekends but she can get some weekdays off. It's not very well paid, but who cares about money? 2. Why does Ann want to get the job in the restaurant? A. She thinks the job would be full of fun. B. It's an easy job. C. The place is good and the food is free. D. She can get long holidays. Ⅲ JOIN OUR FOOTBALL TEAM. Boys and girls wanted to play for a local football team. Aged 9~13. Meet in Green Park on Fridays at 3 pm. Tom: There's a new football team starting in the village, Mum. I'm old enough to play in it. School is over at half past three, so I'd have plenty of time. Mum: Well, I suppose you could do your homework in the evenings. But look, Tom, you haven't read the advertisement carefully. You can't possibly play for this team. 3. Why can't Tom play for the new football team? A. He's not old enough. B. The football team is in a different village. C. School isn't over until three thirty. D. He has to do his homework in the afternoon. 查看答案
题型:问答题 聚苯乙烯可用于制备高频绝缘材料,苯乙烯在我定条件下存在如下图转化关系.请回答下列问题:(1)由苯乙烯合成这种高聚物的化学方程式为______.(2)反应①的反应类型是______,C→D的反应类型是______.(3)C可能的结构简式有______.(4)H有多种同分异构体.同时符合下列条件的同分异构体共有______种.a.与FeCl3溶液发生显色反应 b.1mol H最多能与3mol NaOH反应;c.苯环上只有两个取代基.(o)反应③的化学方程式是______. 查看答案