摘解车辆时,应按()的顺序进行。
A. “一关前、二关后、三摘风管、四提钩”
B. “一关塞门、二摘风管、三提钩”
C. “一关前、二关后、三排风、四提钩”
D. “一关塞门、二提钩&rdquo
机油牌号不对,粘度过高会造成发动机()
A. 机油压力过低
B. 机油压力过高
C. 气缸窜油
D. 曲轴箱机油增多
Smith always()a lot of things to do during the voyage.
A. has
B. have
C. there is
D. there are
医师未经所在医疗机构批准,不得擅自外出会诊。()
A. 正确
B. 错误