_____________ does your cat weigh?A.What B.How much C.How many D.How为什么选B，weigh不可数吗

若lx-2l+ly+1l=0,则x=_____________,y=_____________ Millie does everything _____________ (careful). She often leaves his books at home. How heavy is a camel?同义句_________ ________ does a camp _____________? what does your brother look like?He is _____________.Ai ntelligent B lazy C tall D serious （y/x)3次方除以（x的平方/y)的负二次方=_____________ 多项式x²+y²+2x-4y+7的最小值为_____________ 函数y=(sinx-2)(cosx-2)的最大值和最小值分别是_____________ X的平方-2XY+Y的平方是__________次_____________多项式__________? 把多项式x^2-4xy+2y^2分解因式,得_____________ 求z=ln(y/x) 的全微分dz= _____________ y射线、X射线、可见光、微波按波长由大到小顺序排列为_____________ 杨修说：“_____________.” _____________ does your cat weigh?A.What B.How much C.How many D.How为什么选B，weigh不可数吗 Doesn'the like cats?1Doesn'the like cats?_____________.But he likes dogs.A No,he doesn't.B Yes,he does. How long are staying?I dont know._____________.A That's Ok.B Never mind C It depends D it does't matter. Yao Ming works hard on his English and _____________.A.so Liu Xiang does B.so is Liu Xiang C.so does Liu Xiang D.so Liu Xiang is 根据图片提示和所给部分词语,编写对话.1 he,have,does,a,yes ________? ________. 2. have,do,you,a,no _____________? ________. 3. the,does,have,big,boy,yes ________? ________. 就一个填空!若5^x=3,5^y=2,则5^x-2y=_____________.