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1.a的平方+b的平方-c的平方+2ab 2.x的平方-xy-2y的平方-x-y 3.1-m的平方-n的平方+2mn4.x的平方-y的平方-x+y5.x的三次方+3x的平方-4x-12 我想有本高中语文的关于易错词的书（专门应付判断字音字型的题目）有没有人推荐一本 Their assignments _______,Tom and Bob went to play tennis in the court.(A) are done (B) doing (C) done (D) did 难度：易 分值：4.0 2.A voice _______ the program to announce the election results.(A) broke into (B) broke off (C) cut down (D) cut The evening meal is called dinner or supper.This __1___ will havefive or six dishes with bread and a drink.The most important dish is the___2___.Americans eat chicken,beef,pork,turkey,fish and so on.The second,third and the fourth will be vegetables. http://hi.baidu.com/囧_囧_囧_囧/blog/item/972a63d62d2992d050da4b59.html 1.A is ( )B .A:after B:berore C：in D：on2.( ) comes berore December ,but sfter OctoberA :November B September C :August D:January 已知M=x的平方+xy+y的平方,N=2x的平方-xy+2y的平方,若x=-1/3,y=-2,求2M-【(2M-N)-2(M-N)]的值是 高中语文易错词语成语急求一个高中语文的重点词语成语 有拼音和解释的 急啊! 哪位学长学姐 大哥大姐 叔叔阿姨帮帮忙啊! 谢谢! 高中语文必备成语及解释 英语的25道选择题,拜托看看! 有的 .求常见成语故事,特别是那些易错的成语.发到hua0033@139.com 发过去后要注明你是哪个, 成语错在哪里所以开明的行政者对于民意是顺水推舟的,民意得到畅达,社会也就健全地发展了起来.这句话中顺水推舟这个成语错在哪里 多项式-（5分之xy的平方）的系数是（）次数是（） 高中语文成语总结 多项式Hxy-xy的二次方的次数及最高一次项的系数分别是A.2,1 B.2,-1 C.3,-1 D.5,-1 三百个易错字音,300易错字形,300易错成语 高中易错成语有哪些?容易写错的成语 字音易错的成语 词义易错的（褒义.贬义）成语六月八日解答谢谢一定一定 多一点 高中成语易错 1 题型:单选题（请在以下几个选项中选择唯一正确答案） 本题分数:3.64内容:When electricity was first invented,people refused to believe such a thing ______.选项:a、impossible b、possiblyc、possible d、 impossibly2 题 给我每题简单的解析 1.-I haven't seen Bob for a long time.-I haven't seen him,________.A.too B.either C.instead D.as well as2.I paid a visit to Mrs.Smith yesterday evening.Shen didn't look _____,but she said she was getting on all right.A.as 若x-y=4 求 二分之x的平方+y的平方-xy的值、. 1 .What will the weather ______like tomorrow?A is B be C are D was 2._ _there be more people in 10 years?No ,there_ _.A Have,haven’t B.Will ,won’t be C.Are ,aren’t D.Will,won’t3.Tom _____homework with me at 9:00 last night.A.do B.to do C.was 2011英语六级答对12道选择题多少分? 如何做高中语文选择题?急!1! 如何做好高中语文选择题? 怎么做好高中语文选择题 高中语文选择题考汉字写法或者拼音都考哪些啊?需不需要死抓课本啊? 有没有题目是要选错别字的 1.I have two friends.One is Jim ,_____ is TomA another B the other2.What ____ things can you see in the picture?A another B the other C other3.Could you please ____ out this evening?A not going B not to go C not go D to not go4.Let's ___ a walk after 求x的2次方减xy加y的2次方的值,其中x减y的差的次方=6,xy=2?