190型柴油机()是利用曲轴箱内飞溅起的润滑油进行润滑。
A.连杆瓦与曲轴之间
B.连杆铜套与活塞销之间
C.汽缸套与活塞之间
D.摇臂轴与衬套之间
参考答案:C
需要分批装运出口的货物,整批货物可办理预先报检。
The survey __________ our school last month shows that about 2 percent of the students are addicted to Internet games.
A.conducted
B.having been conducted
C.conducting
D.to be conducted