替换与假设的策略解决问题练习1粮店有大米20袋面粉50袋共重2250千克已知1袋大米的重量和2袋面粉的重量相等那么一袋大米重多少千克2大队部买了12支钢笔和18支圆珠笔共付元乙知2支钢笔的价钱和3支圆珠笔一样多每支钢笔和每支圆珠笔各多少钱35千克香蕉与4千克苹果价钱相等1千克苹果比1千克香蕉贵元香蕉每千克多少元4鸡和兔放在一只笼子里上面有29个头下面有92只脚问:笼中有鸡兔各多少只5某次数学竞赛共
综合练习十八一选择题:(每小题选涂一个最佳答案1-20每小题1分21-35每小题2分共50分)1.下列各组性状中属于相对性状的是 A.棉花纤维的粗与长 B.果蝇的红眼与白眼C.狗的白毛和鼠的褐毛 D.玉米的圆粒和黄粒 2.控制豌豆子叶颜色的等位基因Y和y的本质区别是
八上U8 综合练习 (1) 一根据所给中文及首字母完成句子1. The old man was badly hurt because his car c__________ into a tree last . Do you enjoy the _________________(大自然的)views in your home . When there is an a__________
一 根据提示完成句子1 He is an _______ (诚实的) I want to be a ________ (歌手).3 Learning a foreign ________ (语言) is They went on a trip by __________ (长途汽车).5 Will you _______ (出席) the meeting this evening .6
综合练习一积累与运用(35分)1古诗词默写(10分)(6)____________化作春泥更护花(龚自珍《己亥杂诗》)(7)文天祥的《过零丁洋》一诗中运用比喻把个人遭遇与国家命运紧密结合在一起的诗句是:________________________2阅读下面一段话按要求答题(4分)汉字的形美不可抗拒历代优秀的书法家粲若繁星各俱风cǎi王羲之飘逸俊朗颜真卿粗犷豪放柳公权华美灵巧……名山大川如果少了
综合练习题十八一语音知识(请从下列各项中选出与其它三项发音不同的单词10points). frequentB. packageC. colorD. . coughB. laughC. ploughD. . recycleB. respectC. designD. . easyB. featherC. diseaseD. . mouseB. youthC. aloudD. . fortunat
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二年级第一学期思维训练八(综合练习1) 例1 按规律填数(1)2468( )( )14(2)12569101314( )( )(3)8241422122( )( )67练习1:按规律填数(1)4589121316( )( )(2)227206185164( )(
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八年级综合复习练题一用所给词的正确形式填空: 1. Your room is very ___. Its much ___ than mine. Its ___ of all.(big) 2. —This coat is too ___. (expensive)I dont have enough money to buy it. I can buy a __ one than it. —S
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