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第一个回答就给谁第一个回答就给谁 She often watches TV plays dinner plays和dinner中间应该填什么? 第一个回答给分 什么叫时间的不可逆性? 怎么背书才不容易忘记 怎么样才能背书不容易忘记!最近看书老是会没两天就忘的了,求好办法!谢谢! These young trees ______(water) well every day.You needn't worry about them. 1.Your mother needn't water the jiowers every day.2.Ben has a fever.He better see the doctor.3.My room is tidy than yours.4.Please give they some apples.5.Ours library has more than 5000 books.6.She feels a cold.She has to take some medicine.7.I don' you [ ]water the fiowers every day 请问一下房产证上面的土地性质写的是：土地使用年限是没有日期的又是怎么一回事呢? Lingling can s .She wants to join the sports club.急用啊 she ---the sports club for 3weeks,so she is much healthier than before.A has joined,B has joined in C,has been a member D has been in 选哪个为什么, 求数学大神以下数学题目!一个化肥加工厂,三台机器1.4个小时生产2.52吨化肥,问：如果加4台机器加工56.7吨化肥需要多少小时 18题 下面的哪一题 首字母填空John drives a taxi t_____ the busy streets of Boston every day.One day a young manJohn drives a taxi t_____ the busy streets of Boston every day.One day a young man jumped into his car."To the staation.H_____ up!"he said.John did his b day,man,football,the,young,every,plays.组句子 The youny pioneer carries water for the old man every day.是什么意思 She is in school( )club.She( )well and she wants to( )(is) a ( ) (sing)括号里填什么? 什么的银毯填形容词 写出含“流”字的名词及形容词各一个. 概率论与数理统计的填空题:填空题:1.掷一枚硬币,令Ai表示"第i次为正面朝上",i=1,2,3.则A1UA2UA3表示事件为?2.已知随机变量X只能取0,1,2三个数值,其相应概率依次为1/2c,5/4c,3/12c,则C=?3.设随机变量X 把a的九次方（a＞0）按下列要求进行操作：若指数为奇数,则乘以a；若指数为偶数,则把它的指数除以2,如此继续下去,则第几次操作时a的指数为4?第100次操作后a得到的结果是多少? this is my sister.she likes playing with his friends after school.哪里错了 My party______at five o'clock tomorrow afternoon. Mr.Black doesn't have any children (同义句) 来自历史故事的成语,3个, 输出是5V,600mA的是5V几A 变压器的输出电压为5V 600mA 600mA是什么意思谢谢了,大神帮忙啊 用what tigers the doing are连词造句 设A、B为可数集,证明A∩B是可数集 高温下,氯化氢和氧气能否将零价汞氧化为二价汞?有一套汞的模拟装置,在高温下,向汞蒸气中通入NH3、HCl、O2、N2,希望将部分零价汞氧化为二价汞,是否可以? 需要多少氯化氢谢谢