2.若以奈米(nano meter)為長度計算單位,則 200 公分為多少奈米?
(A) 2T
(B) 2G
(C) 200M
(D) 200K
答案:登入後查看
統計: A(39), B(256), C(55), D(8), E(0) #1670415
統計: A(39), B(256), C(55), D(8), E(0) #1670415