题目全脂奶粉配制牛奶时,奶粉与水的重量比和体积比分别是( )A. 1:8,1:4B. 1:4,1:8C. 8:1,4:1D. 4:1,8:1E. 1:8,4:1全脂奶粉配制牛奶时,奶粉与水的重量比和体积比分别是( )A. 1:8,1:4B. 1:4,1:8C. 8:1,4:1D. 4:1,8:1E. 1:8,4:1题目解答答案A. 1:8,1:4