19.1kcal/hr 等於
(A)0.24
(B)3.968
(C)2.4
(D)4.2BTU/hr
答案:登入後查看
統計: A(0), B(3), C(2), D(0), E(0) #1652581
統計: A(0), B(3), C(2), D(0), E(0) #1652581