问题描述：
[单选]
This used piston had been tested and approved as a spare part by the（）during last annual repair．
A．agent
B．shipchandler
C．surveyor
D．engineer
参考答案：查看无
答案解析：无
☆收藏
答案解析：无
☆收藏
上一篇：Those generally used additives for cooling water are either anti-corrosion oils or inorganic（）．
下一篇：They understand the（）of automatic sludge discharging of the purifierBut they are not good in practice．
- 我要回答: 网友(216.73.216.96)
- 热门题目: 1.在船上拆卸下列中、低速柴油机 2.某些新型大型低速柴油机的气缸 3.利用液压拉伸器松开螺栓前，要