题目

下列说法正确的是（    ） A．用乙醇或CCl4可提取碘水中的碘单质 B．NaCl和SiC晶体溶化时，克服粒子间作用力的类型相同 C．24Mg32S晶体中电子总数与中子总数之比为1︰1 D．H2S和SiF4分子中各原子最外层都满足8电子结构 答案：CDo you want to go by ship to Australia or anywhere? A big ship may help you. It looks like a big house. There are rooms for everyone. In the day you can swim in the pool or play games on the ship. You can even see a film on the ship. Sometimes you can see birds flying around you. They are flying here and there. Look at the picture of the ship. Does it look like a house? It's very large. And it's the most luxury passenger liner(豪华游轮) in the world, called 'Freedom of the Seas'（海洋自由号）. The ship is 339 meters long and 38.6 meters wide, with a golf field on it. It's so cool to take a trip on a ship!1.A big ship looks like_______.A. a pool B. a houseC. a school D. a cinema2. You can swim_______.A. in the day B. in the eveningC. in the afternoon D. in the sea3. You can _______ on the ship.A. swim B. play gamesC. see a film D. A, Band C4. We can play_______ on 'Freedom of the Seas'.A. basketball B. football C. golf D. the piano5. How do you like 'Freedom of the Seas'?A. It is a very big house.B. I can swim on the ship.C. I am very happy to see the ship.D. It's wonderful.