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水按化学性质可分为--------和--------- 月亮属于什么天体? We have every reason to believe that "the' 2008 Olympic Games will be a success.中the要不要加? I'm so sorry to hear that you are going to have an operation ,but don't worry ,I believe you will get well .用汉语怎么说 I believe that we have the reason will also meet,I miss quiet的副词百合不好吃吗 quiet的副词形式是什么? 副词后面可以加形容词吗 quiet是副词吗 同一个意思的形容词形式和副词形式,如quiet和quietly分别何时使用? 用2厘米厚的木板钉一个外侧长1米,宽60厘米,高50厘米的木箱(无盖),这个木箱的容积是多少? Scientist find that hard-woring people live longer than average men and women. 【老友记】i find it hard to believe that a group of people who spends as much time together as you i find it hard to believe that a group of people who spends as much time together as you guys do has never bump uglies.看不懂spend as much time 一个沙坑里有7立方米的沙子,这个长方体沙坑长5米,宽3.5米,该沙坑深（ ） 如图,AB为圆O的直径,CD为弦,且CD垂直AB,垂足为H.(1)如果圆o的半径为4,CD=4根号3,求角BAC的度数在(1)的条件下,圆周上到直线AC距离为3的点有多少个?并说明理由 如图,AB为圆O的直径,CD为弦,且CD垂直AB,垂足为H,圆O的半径为4,CD=4倍根号三,圆周上到直线AC距离为3的点有多少个?说明理由 一块平行四边形的稻田,底是三百米,高是85米,共收水稻17850千克.平均每公顷收水稻多少千克怎么算 一根木材,锯成4段用了42分钟,照这样计算,将这根木材锯成12段,一共要用多少分钟? 把一根木头锯成5段要20分钟,照这样计算,把这根木头锯成9段要多少分钟? i kept telling him that he should study hard but it didn't find itit didn't help 啥意思 Looking at him,we found ______ hard to believe that he was well over seventy.Looking at him,we found ___c___ hard to believe that he was well over seventy.A．that B．/C．it D．what请问这题选什么．为什么? 2.4题算式 0.62×80.5是几位小数 木工师傅把一根粗细均匀的木料锯成5段,照这样的速度锯成7段需要几分钟?用比例方程解.谢配制一种饮料,香精和水的比是1:600.要配制这种饮料1202kg,需要香精和水各多少千克?若有香精12kg,要配 如果把一根木料锯成3段用9分钟,那么用同样的速度把木料锯成6段,要用多少分钟?【比例解】 多位数乘一位数练习题算式!如897*3!100个 如何用九根牙签摆出七个三角形 一块平行四边形钢板中161千克 已知每平方米钢板重35千克 钢板长2.3米 它的高是多少米操场一边长100.8米 准备插上22面旗子 需隔多少米插一面 一块平行四边形钢板重161千克,已知每平方米钢板重35千克,钢板长2.3米,它的高是( )米?一块平行四边形钢板重161千克,已知每平方米钢板重35千克,钢板长2.3米,它的高是( )米? 一块平行四边形钢板161千克,已知每平方米钢板重35千克,钢板长2.3米,它的高是多少米? 世界上面积最大的草原是? 一块平行四边形钢板,长,八分米高,长六分米,每平方分米,钢板重0.4千克这块钢板重多少千克? 澳大利亚是不是世界上草原面积最大的国家?