阿摩線上測驗
24. I can tell you the actual internal____________ of a pipe depends upon the pipe standard
and schedule being used.
(A) density
(B) color
(C) diameter
(D) conduction
答案：登入後查看
統計： A(53), B(108), C(411), D(99), E(0) #1626199
統計： A(53), B(108), C(411), D(99), E(0) #1626199
