9. 如下圖所示輪胎胎壁中，DOT 所代表意義為何？
(A)Department of Transportation
(B)Departure of Transportation
(C)D epasture of Tire
(D)Department of Tire。

答案：登入後查看
統計： A(12), B(3), C(1), D(2), E(0) #1166005