具有吸附能力的（）物质称为吸附剂。 A.多孔性材料 B.多孔性胶体 C.多孔性固体 发布时间：2017-05-26 22:03 │ 来源：www.tikuol.com 题型：单项选择题 问题： 具有吸附能力的（）物质称为吸附剂。A.多孔性材料B.多孔性胶体C.多孔性固体D.多孔性粉末
题型：单项选择题 某高层住宅区，建筑面积为30万m2，全现浇框架-剪力墙结构。该市位于华北平原，春季经常有4级以上的大风，偶尔还有沙尘暴发生。施工单位采取了积极的措施，如洒水降尘、覆盖坡面等，尽量减少对附近居民的不良影响。但由于该项目规模庞大，土方施工期较长，仍不可避免地会出现扬尘现象。为此，该项目部主动与周边小区委员会联系，做好协调解释工作，取得了周边居民的谅解。下列对于施工现场空气污染的防治措施中，不正确的是( )。A．施工现场垃圾渣土要及时清理出现场B．机动车(内部)进出不受限制C．工地茶炉应尽量采用电热水器D．高大建筑物清理施工垃圾时，要使用封闭式容器 查看答案
题型：单项选择题 完形填空。 Most healthy children are ready to eat almost anything offered to them.A child doesn't often dislikefood 1 it is badlycooked. The 2 a meal is cooked and served is the mostimportant and serving meals 3 will often improve a child'sappetite (食欲). Never ask a child 4 helikes or dislikes afood and never 5 likes or dislikes before him or allow 6 else to do so. If the fathersays he hates meat or the motherrefuses vegetables in the child's hearing, he is 7 to copytheir words. It is important for parents to teach a child to like 8 and he probably 9 . Nothing healthful should beleftout from the meal because of a supposed 10 . At meal time itis a good 11 to give a child asmall 12 and let him 13 back for a second helping rather than give him too 14 . Do not talk toomuch to the child 15 meal time,but let him geton with his food, and do not 16 him to leave the tableimmediately after a meal or he will 17 learn to eat his food tooquickly 18 he can hurry back to his toys. On 19 conditions (情况) must a child be coaxed (哄骗) to eat 20 forced to eat.( )1. A. if ( )2. A. means ( )3. A. anxiously ( )4. A. whether ( )5. A. say ( )6. A. everybody ( )7. A. possible ( )8. A. something ( )9. A. should ( )10. A. dislike ( )11. A. point ( )12. A. breakfast( )13. A. ask ( )14. A. much ( )15. A. on ( )16. A. agree ( )17. A. slow ( )18. A. so that ( )19. A. some ( )20. A. or B. until B. road B. interestinglyB. what B. tell B. anybody B. friendly B. nothing B. may B. taste B. custom B. lunch B. come B. little B. for B. allow B. soon B. until B. any B. nor C. that C. way C. carefully C. that C. discuss C. somebody C. likely C. things C. will C. love C. idea C. supper C. return C. few C. by C. admit C. quick C. before C. such C. but D. unless D. method D. easily D. which D. speak D. nobody D. sure D. everything D. must D. imagination D. plan D. share D. take D. many D. during D. advise D. early D. though D. no D. neither 查看答案