某自来水公司水费计算方法如下：若每户每月用水不超过5，则每立方米收费1.5元；若每户每月用水超过5m3，则超出部分每立方米收取较高的走额费用.1月份，张家用水量是李家用水-八年级数学

更多内容推荐

• 根据规划设计，某市工程队准备在开发区修建一条长300米的盲道．铺设了60米后，由于采用新的施工方式，实际每天修建盲道的长度比原计划增加10米，结果共用了8天完成任务，则该-八年级数学
• 根据规划设计，某市工程队准备在开发区修建一条长300米的盲道．铺设了60米后，由于采用新的施工方式，实际每天修建盲道的长度比原计划增加10米，结果共用了8天完成任务，则该-八年级数学
• 甲、乙两地间铁路长2400千米，经技术改造后，列车实现了提速，提速后比提速前速度增加20千米/时，列车从甲地到乙地行驶时间减少4小时，已知列车在现有条件下安全行驶的速度不-八年级数学
• 汛期到来之前，某施工队承担了一段300米长的河堤加固任务。加固80米后，接到防汛指挥部的指示，要求加快施工进度。为此，施工队在保证施工质量的前提下，每天多加固15米，这-八年级数学
• A、B两种机器人都被用来搬运化工原料，A型机器人比B型机器人每小时多搬运30kg，A型机器人搬运900kg与B型机器人搬运600kg所用时间相等，两种机器人每小时分别搬运多少化工原料-八年级数学
• 一件工程甲单独做15天可以完成，乙单独做12天可以完成，甲，乙，丙三人合作4天可以完成，那么丙单独做，()天可以完成-八年级数学
• 某工地调来72人参加挖土和运土，已知3人挖出的土1人恰好能全部运走。怎样调配劳动力才能使挖出的土能及时运走且不窝工。解决此问题，可设派x人挖土，其他人运土，列方程为①；-八年级数学
• 甲、乙两地之间铁路长2400km，经技术改造后，列车实现了提速，提速后比提速前速度增加20km/h，列车从甲地到乙地行驶时间减少4h，已知列车在现有条件下安全行驶的速度不超过1-八年级数学
• 节日期间，文具店的一种笔记本8折优惠出售，某同学发现，同样花12元钱购买这种笔记本，节日期间正好可比节日前多买一本，这种笔记本节日期间每本的售价是多少元？-九年级数学
• 某开发商要建一批住房，经调查了解，若甲、乙两队分别单独完成，则乙队完成的天数是甲队的1.5倍；若甲、乙两队合作，则需120天完成。（1）甲、乙两队单独完成各需多少天？（2）施-九年级数学
• 某玩具厂生产一种玩具，甲车间计划生产500个，乙车间计划生产400个，甲车间每天比乙车间多生产10个，两车间同时开始生产且同时完成任务，设乙车间每天生产x个，可列方程为[]-九年级数学
• 某商场用32000元购进一批运动服，上市后很快脱销，商场又用68000元购进第二批这种运动服，所购数量是第一批购进数量的2倍，但每套进价多了10元。①该商场两次共购进这种运动服-八年级数学
• 列方程解应用题。某人往返于甲、乙两地，去时步行2千米，再乘汽车行10千米；回来时骑自行车，来去所用时间恰好一样，已知汽车的速度是步行速度的5倍，骑自行车比步行每小时多-九年级数学
• 在“情系玉树”捐款活动中，某同学对八年级的（1）、（2）两班的捐款情况进行统计得到如下三条信息：信息一：（1）班共捐款300元，（2）班共捐款232元；信息二：（2）班平均每人捐款钱数是（-八年级数学
• 一班级组织一批学生去春游，预计共需费用120元，后来又有2人参加进来，总费用不变，于是每人可以少分摊3元，原来参加春游的学生人数是（）。-八年级数学
• 甲志愿者计划用若干个工作日完成社区的某项工作，从第三个工作日起，乙志愿者加盟此项工作，且甲、乙两人工效相同，结果提前3天完成任务，则甲志愿者计划完成此项工作的天数-八年级数学
• 某商店用8万元购进一种衬衫，因为销量好，第二次又用17.6万再次购进，数量为第一次的2倍，单价却贵了4元，卖时，两次定价都为58元一件，最后剩下50件时八折售完，问两笔生意-八年级数学
• 某书店用2400元购进一批图书，并以每套58元的价格全部售完。由于此书畅销，该书店又用了5280元再次以比第一次进价每套多4元的价格购进此种图书，数量是第一次进书数量的2倍，-八年级数学
• A lot of people attach great importance _____ rich and famous. [ ]A. becomes B. to become C. to beco
• Mr. Huang will _____ in the movement. [ ]A. play a leading part B. take parts C. play leading part D
• He had to drive faster to ______ for the lost time, which is considered dangerous to the passengers.
• Iraq has _____ too many wars since 1990s, making his people _____ a lot.[ ]A. got through; pay B. lo
• The chance should be made _____, since you have got it. [ ]A. up of B. the most of C. best of D. a g
• Are you afraid that your friend would laugh at you, or would not understand what you are _____? [ ]A
• It is _____that she helped others with their lessons after school.[ ]A. worth to be praised B. worth
• Practising Chinese kung fu can not only _____one's strength, but also develop one's charac
• Mary is going to quit her job because she is tired of _____ by her boss every day. [ ]A. shouting at
• Please _____ the numbers and I'm sure they will _____ more than 1, 000. [ ]A. add up; add to B.
• —How did your father _____ smoking?— The doctor told him to do so, and he took the advice. [ ]A. giv
• He is not an easy man _____. [ ]A. to get on B. to get along C. to be got along withD. to get on wit
• We must work out a plan as soon as possible on _____ with these garbage. [ ]A. what to do B. what to
• With a lot of things ， John will have a difficult time.A．to deal withB．deal with C．dealing withD．de
• _________as one of the most important inventions of the time, the computer helps people living in di
• The interviewee hurried to the meeting room，only ________ that the interview was over.A．to tellB．ha
• After starting work, Cao spent his evenings _____ in his books and was eventually admitted to a seco
• He is thought ___foolishly .Now he has no one but himself to blame for losing the job.A．to actB． to
• （2014年北京市西城区高三5月二模试题）26. Sometimes, ______ a patient a get-well card is better than visiting him. A．
• By 2013, cases of AIDS had been reported in Harbin, thus _____ AIDS a provincial concern.A．to makeB．
• Almost 50% of those ________ said that they supported the President's decision.A．surveyB．survey
• In some cities the traffic police use computers to keep the traffic________smoothly.A．being runB．run
• Sir, do you have anything _______ this afternoon? If there is nothing to do, I wonder if I can ask f
• Sarahpretendedtobecheerful,_____nothingabouttheargument.A．saysB．saidC．tosayD．saying-英语
• ---Is there any possibility of _______ the match? ---I’m not sure.A．our team to winB．our team wonC．o
• An official is said _______ fire to a camp in the field, _______ one death and two injuries.A．to set
• I really appreciate ________ to drive me home, but I’m afraid I have to finish my work first.A．you t
• Andrew wanted to find another boy to be his best friend, but Annie told him ___.A．not toB．not to doC
• ---What do you think made Celia so happy?--- ______ a prize in the recent competition.A．She wonB．Won
• Laura was away in Paris for over a week.When she got home，there was a pile of mail________for her. (
• Born in a remote village ________ by endless mountains in Yunnan, I always dream of ________ the ou
• —Where are the papers for the Smith project?—They are in the folder ________ “S”．A．markingB．markedC．