单选题In machinery space, the valves, pipes should be（）Aarranged as close to each other as possible to save spaceBarranged far away from each other for convenient operationCbe fixed or clamped to avoid vibrationDkept easy removable as to convenient repairing work
单选题
In machinery space, the valves, pipes should be（）
A
arranged as close to each other as possible to save space
B
arranged far away from each other for convenient operation
C
be fixed or clamped to avoid vibration
D
kept easy removable as to convenient repairing work
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相关考题：
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