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单选题
859、Rectify the defect before you stop the/pump momentarily.
A
Restore the defect before you stop the pump for a long time.
B
Correct the defect before you stop the pump for a short time.
C
Record the defect before you stop the pump later.
答案解析
正确答案：B
解析：
解析:注释:rectify=correct 矫正,纠正;restore 恢复,修复;record 记录,记载。
相关知识点：
短停泵前要纠正缺陷
