题型：问答题 简答题 X、Y、Z三种气体都能对大气造成污染，在工业上都可以用碱液吸收。已知X是煤燃烧的产物之一，是形成酸雨的主要物质；Y是一种单质，为黄绿色气体，它的水溶液具有漂白作用；Z是硝酸工业和汽车尾气中的有害物质之一，能与水反应。（1）X为______；Y为______；Z为______（2）写出下列反应的化学方程式：①X在一定的条件下与氧气反应_______________________②Y与氢氧化钠溶液的反应_______________________③Z与水的反应_______________________ 查看答案
题型：问答题 简答题 完形填空。 I still don't believe in ghosts even after my experience at the Rose Inn. 1 I have never seen one. But stories have made me feel 2 since then. I arrived at the inn late at night and asked the landlord for a room. "There is nothing left," he said, " 3 you'd like to sleep in Number 7." "Why not?" I said. "What's 4 it? I am 5 that I would sleep 6 ." "Nothing," he said slowly, "but something happened there a few months ago." Every old inn has its own strange stories, so I thought that 7 he told me about it, the better. I was willing to listen to anything for a room to 8 . "A man came here late at night 9 you." the landlord said, "I thought there was something strange about him because he kept 10 while he was signing his name in the book. He asked me 11 room he could have and I offered him No.7.' 12 a man who has said he'll 13 me,' he said suddenly, 'with a knife.' He looked sofrightened that I thought I had better 14 him to his room. I closed the door and left him 15 . The next day we found him dead, with a knife beside him. He had cut his throat." The landlord said, "Or 16 had done it. Do you 17 sleeping there now you know the story?" "Well," I said, "no one is 18 me. But I wish you had told me the story 19 . As it is, I'll sleep here on the floor in the bar if you have a couple of 20 ." ( )1. A. Because ( )2. A. natural ( )3. A. unless ( )4. A. the price ( )5. A. so tired ( )6. A. somewhere ( )7. A. the later ( )8. A. rest ( )9. A. like ( )10. A. looking after ( )11. A. what ( )12. A. There's ( )13. A. harm ( )14. A. invite ( )15. A. by himself ( )16. A. whoever ( )17. A. like ( )18. A. tricking ( )19. A. at night ( )20. A. chairs B. Of course B. unsafe B. if B. wrong with B. so hurt B. anywhere B. the quicker B. live in B. with B. looking into B. which B. He's B. punish B. take B. for himself B. nobody B. mind B. following B. at once B. blankets C. At all C. brave C. since C. the matter C. very weak C. nowhere C. the sooner C. lie down C. behind C. look ing over C. whose C. It's C. frighten C. bring C. at himself C. anybody C. permit C. killing C. in time C. books D. Though D. uncomfortable D. whether D. strange for D. too worried D. everywhere D. the slower D. go to D. because of D. looking back D. whether D. That's D. kill D. allow D. to himself D. someone else D. promise D. frightening D. in the morning D. swords 查看答案