半径5厘米长两米的木头体积是多少

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半径5厘米长两米的木头体积是多少
英语 完形填空 就现在要 I travel overseas a lot for business.Most of our company'sI travel overseas a lot for business.Most of our company's business is in Asia.In all 66,I've had a hard time learning how to do business there.At first,I had bottom He fell ill yesterday 这句哪个是系动词,表语,主语等.还有 此句的yesterday是什么.(意思我懂,是什么语.) My grandpa fell ill yesterday.这句话是不是错了fell 是feel的过去式吗? 为什么是He fell ill yesterday而不是felt呢? 二重积分f(x,y)= 2,0《=x《=1,0《=y《=x (=0,其他)求p{x+y [af(x)+bf(y)/f(x)+f(y)]的二重积分 积分区域为x^2+y^2 根据所提供的语境,在下面横线上填入两个恰当的语句,使前后句式一致.露珠虽小,却可以折射太阳的光辉根据所提供的语境,在下面横线上填入两个恰当的语句,使前后句式一致.露珠虽小,却可 化二重积分I=ffd f(x,y)do为极坐标下的二次积分,其中D是:D:0 2 bars walk past我需要它的用法和例句Who can help me?I will give some things to you 5555555555,Aleiyado怎么会没人回答呢? 用ill的正确形式填空,though he has been to the hospital,he feels even ( )now用ill的正确形式填空.有理由,理由,bad的比较级才是worse 改为现在进行时1Danny, open the door Shut the door!变成现在进行时 shut the door!(变成现在进行时态) 求二次积分 函数y=f(x)的定义域为(0,+∞),且单调递增,满足f(4)=1,f(x·y)=f(x)+f(y)(1)求证f(1)=0 (2)求f(16)(3)f(x)+f(x-3)<1,求x的取值范围 已知f(x)是定义域在(0,+∞)上的单调递增函数,且满足f(6)=1,f(x)-f(y)=f(x/y),(x>0,y>0)则不等式f(x+3)<f(1/x)+2的解集为 .Yesterday,Ben and Kitty __________ (be) at home.They __________ (sing) a lot of songs.I heard them _____________ (sing) loudly. 若区域D为(x-1)^2+y^2 若区域D为(x-1)^2+y^2 求二次积分绝对值1一X^2一Y^2d♂,其中D为圆域X^2+Y^2≤4 Y分之2X等于2y平方分之4xy ① Y分之2X等于2y平方分之4xy② 9a平方b分之6ac等于3ab分之2c③x+y分之x-y等于(x+y)平方分之x平方-y平方 已知Y=f(x)定义域为(0,+∞),且是单调函数,并且满足f(2)=1,f(x/y)=f(x)-f(y)求证:1.f(x²)=2f(x)2.求f(1)的值.3.若f(x)-f(x+3)≤2,求x的取值范围。 正圆柱体内接于高为h,底半径为r的正圆锥体内,设圆柱体的高为x,试将圆柱体的底半径y与体积V分别表示为x的函数最好解答出现的把每步所运用的知识点都写出来!写出全部解题思路 当北京时间是2000年元月1日是,全球已是新千年的范围 从这段话中,你能看出格罗培斯的"最佳设计"好在哪里? WHERE IS THE PICTURE ABOUT SAMPLE WITH GOOD FINISHING YOU PROMISED.WHERE IS THE PICTURE ABOUT SAMPLE WITH GOOD FINISHING YOU PROMISED.翻译为中文! the camel lives in the forest.(变为否定句) the camel_________ in the forest. Give the camera to the man改同义句 please give the box to Mr.yang(同义句转换) Most students in my class are 18__A.about B.around C.over D.or so