问题描述：
[单选]
The exhaust gases for a new engine should be（）when the engine operates under full load．
A．smoky
B．a little bit dense
C．visible
D．almost invisible
参考答案：查看无
答案解析：无
☆收藏
答案解析：无
☆收藏
上一篇：The external circumference of a pair of main bearing shells is slightly larger than that of the bore of the housing which receives themThe difference is termed（）．
下一篇：The engine will fail to start unless（）．
- 我要回答: 网友(216.73.216.130)
- 热门题目: 1.吊缸主机检修时，应当（），以 2.起吊活塞组件应（），以防超重 3.拆装螺母时，不符合安全操作规