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乳化油的用法乳化油能涂在车床导轨面上润滑吗 乳化油废水能否用气浮法处理 北极熊最大的天敌是谁? 北极熊的天敌是什么呢? 小北极熊的天敌是什么急. 小北极熊的天敌是 百度知道my favourite food is noodles and dumplings 这句话对吗 动物园有大小两只河马,共重4.2吨.大河马体重的2.5倍.大 小河马的体重各是多少吨? 河马的体重有多少 I found it very hard ____ on time because of the heavy rain.A. to arrive B. arriving C. to reach D. to get答案是选A. 请问为什么呢?为什么不选C？ 河马体重多少一般的河马 补全下列句子中被省略的成分（英语）1.The heavy rain prevented him arriving there on time.2.It is suggested that we go to see the film.3.He said the text was very important and that we should learn it by heart.4.When neccessary you can the heavy rain them getting to school on timeA,stopped;fromB,allow;toC,slow;downD,turn;off 从甲地到乙地,大客车要行驶5时,小轿车行驶4时,大客车比小轿车慢百分之几? ,She thinks documentaries are boring so(and) she does not like documentarie(thrillers) She thinks they are scary.原题的一句话,用括号里的词不可以吗? 从甲地到乙地,大客车要行10小时,小轿车行8小时,小轿车比大客车快（ ）% june thinks documentaries are boring ,（）she doesn't like themA.because B.so C.but D.then 说明理由!1 she thinks documentaries is boring..改错 I like fish best.改为同义词 My favourite food is eggs.如何提问 favourite,his,food,rice,is 连词成 老鹰的天敌是谁? My favourite food ___potatoes and fish.be动是用is还是用are? 老鹰的天敌是什么? 老鹰的天敌 老鹰的天敌是什么?哪些动物没有天敌 老鹰的天敌是什么动物? 甲乙两个仓库,甲仓库存粮比乙仓库多25吨,如果把甲仓库存量的1/10放入乙仓库,则乙仓库存粮比甲仓库少15吨,问甲乙两个仓库共存粮多少吨? 对 I don't like politics (because it's boring.) 括号里的内容提问 A,B两地相距480km一列慢车从A地出发,每小时行驶60km,一列快车从B地开出,每小时65km.根据题意列方程1 两车同时开出,相向而行,x小时相遇2 两车同时开出,背向而行,x小时候两车相距620km3 慢车先开 AB两地相距480km,一列慢车以60km/时的速度从A地开出,一列快车以65km/时的速度从B地开出.慢车先开一小时,相向而行,慢车开出x小时,两车相距100km,则列方程为 A、B两地相距480km,一列慢车以60km/h的速度从A地开出,一列快车以65km/h的速度从B地开出.若慢车先开出1h,相向而行,慢车开出多少小时后两车相距620km? ab两地相距480km.快车每小时走65km,慢车走60km若两车同时开出,同向而行,快车在慢车后面,x小时后快车追上慢车?列方程.若慢车在后，同向而行，x小时快车与慢车相距640km？列方程，...... His favourite food is noodles and rice. 这句话对吗?不对的话应该怎样改?