fx=1xsin1x的间断点

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小孩子怎样学拼音,声调 如何教孩子学拼音声调 学校粉刷墙壁需要购买一种油料.这种油料500g售价198元,一次买500g赠送0.05kg.现需要购买2.75kg油料,应付多少元? 孩子上一年级了拼音就是学不好该怎么办啊? 孩子上一年级拼音学的不好怎么办? 一年级孩子拼音学不好怎么办 李军期末考试,语文、政治、数学三科的平均分数是87分,如果再加上英语和自然,五科平均成绩是89自然比英语少得12分,那么英语得多少分? 三道单选题1.The novel is based on a true story of a famous star,so once( ),it will be very popular.A.publishes B.having published C.publishing D.published2.There are many good stories about the Long March,( )this is the most instructive.A.of whi 3道英语单选题 1.Modern equipment and no smoking are two of the things I like_______working here.A.with B.at C.about它说是“关于在这里工作,我.” 为什么不能选B呢?可以译成“在这里工作.2.-We quarreled with the waiter a 问3道单选题1.—Car 17 won the race.--Yes,but thedriver came close to_____.A.having killed B.being killed C.have killed D.be killedcome close to 的to是介词吗?还有哪些to是介词的?2.Sullivan pushed the door ________and rushed in.A.open 三道法语单选题!1.votre gentillesse vaudra _____qu'un long discours s'il faut signer un contrat!A.mieux B.meilleur C.plus bien D.meilleure 2.la marchante a montre tout _______interessait Pierre.A.ce qu' B.qui C.celui D.ce qui 3.Si tu veux aller 求助3道英语单选题,1.Many new___will be opened up in the future for those with a university degree.A.realities B.necessaries C.opportunities D.probabilities2.It's always been the___of our firm to encourage workers to take part in social activi 【bɔ:d】这是哪些单词的音标? 【bɔ:d】 这个音标,有哪些单词? 3条单选题1.--Oh,it's you,Tom.I never ( )we met here.--But we did!A.think B.thought C.think about D.thought about2.I have ( ) problems at my new school than at my old one.A.less B.fewer C.least D.fewest3.Do you know( A.whom this poem is written by Then he ____the student going on his reading.A,leftB,letC,helpedD,taught为什么用going? 北京时间晚上20:21德国应该是几点 德国现在是什么时间,上午下午还是晚上呢?和北京时间的时又是多少?求问. 英语好的帮我做三道单选题啊,上课要讲这三道题,大家帮我看看,1,If there was Gone with the Wind in the bookstore,I ____it yesterday.A would have bought B bought C had D may have2,We regret_____them that the construction material 3道英语单选题我不太确定.请讲一下! 三道英语单选题 说明原因!1.I shall never forget the days —— we stayed together on the farm.A that B which C when D why2.Mother has bought all —— is necessary for New Year‘s Day.A what B which C that D because3.My hometown isn’t 异分母分数加减法20道 求200道异分母分数加减法! My birthday is in August.(改为同义句)I ___ ___ in Australia.是滴,打错了额。 如何用含X的式子表示Y 如何用含X的式子表示Y 如3X+2Y=5 求 将x-y=x/y变成用含y的式子表示x例:4/2=4-2,9/2-3=9/2除以3再找一组满足以上特征的两个实数,并写成等式形式,(最好要推理过程) 在方程(2/5)x+(7/4)y=2中,如果用含有x的式子表示y,则y=? /‘strɔ:bəriz/是那个单词的音标? /bæŋk/这个音标是哪个单词 小学一年级拼音教学 用含x的式子表示y的形式