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introduct hydrogen gasplease help me to introduct hydrogen gas 被雷电击坏的电器一般是坏在那里? 圆锥的圆心角怎么求 关于圆心角和圆锥的高的问题?扇形的半径为30、圆心角120度、若用它卷成个无敌的圆锥形筒、那么这个圆筒的高是多少? 高数,用等价无穷小求极限 什么是胶体?形象化的描述 关了排插开关但是没拔出电器插头,电器会被雷劈中吗? 家里有总闸开关能防电器不被雷劈吗? 用几句形象化的话描述一个亲人 眸字怎么读 被雷劈是什么原理?家里电器被雷劈是什么原因?手机为什么在打雷天不应该开? KMT是什么意思? 眸怎么读?全拼 这段话哪儿错了,怎么改?A: When they got outside again the rain had B: turned to snow. They ran to the car, laughing.C: They felt as if they were released from D: a prison and now they wanted to have fun.答案说C行错了, 比如甲细胞核有D和d 乙细胞核有R和r,Y和y.为什么两个都有两个等位基因?怎么数得?。 要比赛了!分糖果的奥数题!一包糖果分给甲乙丙丁4人,甲分到这包糖果的五分之一多7块,乙分到这包糖果的四分之一多五块,丙分到余下的二分之一,最后剩下的比这包糖果的八分之一多十二块 这段话有错吗?you must catch your love by yourself,if you dont express it,people will never know what you think. 三个小孩分糖果,每人平均分得整数块,已知乙比甲多得7块,丙所得的是乙的二倍,且糖的总数是小于40的质数,它的各位数字和为11.求每人的得糖数 Project of Global Access是什么? 什么是technology enhanced language learning deep time perspective 请问这名话错在哪里?用来记录所有者权益的账户,其结构与负债类账户的结构相同.即所有者权益的增加额记入账户的贷方,减少额记入账户的借方,期末一般无余额. AB两地相距23千米.甲到乙后停留20分钟返回甲地.乙到甲后停留30分钟返回乙地.甲乙各自出发5小时在返...AB两地相距23千米.甲到乙后停留20分钟返回甲地.乙到甲后停留30分钟返回乙地.甲乙各自 甲、乙两地相距23千米,A从甲地到乙地,到乙地后在乙地停留20分钟后又从乙地返回甲甲、乙两地相距23千米,A从甲地到乙地,到乙地后在乙地停留20分钟后又从乙地返回甲地;B从乙地到甲地,到 AB两地相距23千米.甲到乙后停留20分钟返回甲地.乙到甲后停留30分钟返回乙地...AB两地相距23千米.甲到乙后停留20分钟返回甲地.乙到甲后停留30分钟返回乙地.甲乙各自出发5小时在返回的路上相 江苏省洪泽中学在哪? 谁有北师大版数学初二的期中试题要有答案 看一下这段话有没有错误不用翻译,看一看语法的使用有没有错误128억 광년,‘우주의 끝’에서 일어난 폭발NASA의 궤도 망& 下面这段话有没有错误Good morning,ladies and gentlemen,do you like my song?The speech I address today is “Expo,makes life more exciting” One time,I saw a stranger drop a rubbish on the ground.Then I heard a sweet voice:"Don't do that,Dad spiritual and psycological 什么区别 the student herself was quite a spiritual sort and.the student herself was quite a spiritual sort and became more than a little upset at his lack of logic and the way he seemed to expect her to accept his word as written in stone. 什么是Verwey transition?