下列反应中不属于复分解反应的是（   ）

若，则                                     （   ）

《人民日报》载文指出，个别地方领导干部急功近利、心浮气躁，不太愿意做见效慢、但能让群众长期得实惠的工作，而是盲目追求高速度和轰动效应，热衷于短期行为和华而不实的“面子工程”、“形象工程”。其实，此类政绩越多，人民群众受害愈深，国家利益受损愈重。这些现象说明：
①政府及其公职人员的工作应依靠人民的支持
②政府及其公职人员不能把为人民服务停留在口头上，要落实在实际行动中
③政府及其公职人员的工作应经得起实践、群众和历史的检验
④政府及其公职人员应为公民求助提供多种途径

已知直线（2+m﹣m²）x﹣（4﹣m²）y+m²﹣4=0的斜率不存在，则m的值是（　　）

完形填空
      American people have the habit of saying “Thank you”when something kind is done for them or something polite is said to them, no matter how easy the thing is. This habit is learned by people of many   1  countries.
      You should say “Thank you”when someone  2  you the salt on the table, when someone steps aside to let you   3  in a corridor （走廊）, when someone   4 ahead of you keeps  the door open  5 you, when someone says your work is well   6 or you have bought a nice thing, or your city is very beautiful.
    “Thank you”is   7  not only between strangers or new friends, but also between old friends, parents and children, brothers and sisters, husbands and wives. Parents often tell  8 children that they should say “Thank you”in answer to a kind word or act when they are only four   9 five years old. Perhaps that’s  10  almost everyone has got this habit.