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单选题
573. Transfer of hydraulic fluid between hydraulic system A and B is caused by improper operation of system controls or worn equipment
A
Uncontrolled system or old equipment cause hydraulic fluid flow from hydraulic system A to B.
B
If you fail to operate the system control properly or the equipment is damaged, the hydraulic fluid will be transferred between hydraulic system A and B.
C
Flow of hydraulic fluid between hydraulic system A and B result in accidental operation of system controls or damaged equipment.
答案解析
正确答案：B
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