23. 如下圖,分厘錶針指在泵浦聯軸器端,從馬達端往泵端看,則對心時馬達要往
(A)左推 3mils
(B)左推 4mils
(C)左推 2 mils
(D)右推 4mils。

答案:登入後查看
統計: A(0), B(3), C(0), D(0), E(0) #745509