问题描述：
[单选]
The quality of the fuel oil and lube oil（）， Im afraid．
A．has much to do with the operation of the engine and its life
B．have much to do with the operation of the engine and its life
C．has much doing with the operation of the engine and its life
D．have much doing with the operation of the engine and its life
参考答案：查看无
答案解析：无
☆收藏
答案解析：无
☆收藏
上一篇：（）， so they are widely used on board ship nowadays．
下一篇：The fuel injection system is very important， so any trouble of it will（）the operation of the main engine．
- 我要回答: 网友(3.144.6.254)
- 热门题目: 1.按照说明书的规定，（）进行一 2.在柴油机投入使用一年或大修后 3.对使用液压撑杆螺栓的正置式主