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【多选题】
液压动力转向系统的因油液泄漏、渗入空气、动力转向泵失效、转向控制阀损坏和机械传动机构损坏而引起的液压助力系统故障是( )。A.
车辆发飘
B.
转向沉重
C.
转向噪声
D.
自动跑偏
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反馈参考答案：
举一反三
【单选题】Dr Bethune was busy _____ the wounded soldiers. [ ]
A.
operating on
B.
operate on
C.
operate at
D.
to operate in
【单选题】At what level do films operate?
A.
Films operate at the rational level.
B.
Films operate at the emotional level.
C.
Films operate at the cold-evaluating level.
【单选题】They set up a(n )__________________ (operate) table in a small temple. A. operating B. to operate C. operated D. operate
A.
operating
B.
to operate
C.
operated
D.
operate
【简答题】BOT的全称是() Abuild-operate-transfer Bbusiness-operate-transfer Cbusiness-office-transfer Dbuild-operate-train
【判断题】An NVOCC usually does not operate vessel to provide sea transportation, but operate a regular schedule service.( )
A.
正确
B.
错误
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