已知函数fx等于根号下x2-4x

雅思词汇书,词以类记与王陆807哪本好?本人2个多月后考雅思,现已经购买了了王陆807听力和写作的词汇书,也开始背了.后来报了个补习班,老师推荐我们买张红岩的词以类记背,实在是不想买啊, will I am that like sure he at would party you like to the perform 连词成句 sb be stuck up 有背景段.I'm an apprentice hairdresser.I enjoy the work very much.I'm learning a lot,not just about hair,but how to get along with people.I'm gaining confidence 'cos I never had that at school.I left as soon as I could.I hated it.I be intended for be true for sb. 小学1之6年级学过的古诗和宋词小学1之6年级学过的所有古诗和宋词都帮忙给我找出来!要清楚! 相比之下,为什么宋词比唐诗难背. 求高中生必背经典10首唐诗 10首宋词最好能简短一些 我的记忆力不太好.要求是不同诗人的 在此先谢谢了 （最好有几篇附上鉴赏 不用太多 几句就好 ） 小学语文诗词：唐诗宋词 FM和AM有什么区别?广播的FM和AM,打好必有重赏! he is always ____late.为什么填working而不填works 1.He is always ____ late A、works B、working C、work D、worked 辛弃疾宋词精选 宋词精选xiaoci 宋词精选 长的 (要读五分钟) 猫头鹰的天敌是田鼠是什么意思 Lee is a ______student.He always______others in his class.(help) He works very hard ,so he is -----a top student in his class A.in the way to becomeB,on the way to becomeC.in the way to becoming D.on the way to becoming答案是D 为什么 be safe for sb 的意思RT. 唐诗宋词精选 猫头鹰捕食用的是超声波还是次声波 欧美电影经典台词最好是最新的电影的.老电影也可以,不过希望是有名一点的电影.最好是中英文双语的. 求欧美电影的经典台词中文,英文的要有中文翻译 be good for sb是主谓宾还是主系表be good for sb是主谓宾结构还是主系表? for sb. 这部分在句子中作什么成分? 请问中国的菜名翻成英文怎么说?比如宫爆鸡丁,包子,陷饼之类的,急用,求求哥哥姐姐,说下! contribute to 都是可以怎么翻译? 71.74英语 英语问题74WhenMary Moore began her high school in 1951,her mother told her,"Be sureand take a typing course so when this show business thing doesn't work out,you'll have something to rely on." Mary responded in typical teenagefashion．From that 英语翻译化工方面的一种材料,但不知道叫什么最正确 It is very difficult _____（drive）in the mountains.用恰当形式填空怎么写? It's in the mountains?翻译! I'm hoping the weather is nice in the mountains