42.由圖所示，貫穿螺栓的上緊順序，應為下列那一選項 ? (A)1 → 2 → 3 → 4 → 5 →6 → 7(B)1 → 3 → 2 → 4 → 6 →5 → 7(C)7 → 6 → 5 → 4

問題詳情

42.由圖所示，貫穿螺栓的上緊順序，應為下列那一選項 ?

(A)1 → 2 → 3 → 4 → 5 →6 → 7
(B)1 → 3 → 2 → 4 → 6 →5 → 7
(C)7 → 6 → 5 → 4 → 3 →2 → 1
(D)4 → 5 → 3 → 6 → 2 →7 → 1