题型:判断题 指数平滑平均数的计算公式是()。A.St=αx0+(1-α)St-1B.St=αxt+1+(1-α)St-1C.St)=αxt-1+(1-α)St-1D.St=αxt+(1-α)St-1 查看答案
题型:判断题 My friend of medium build and she curly hair.[ ]A. has ; has B. is; is C. has ; is D. is; has 查看答案