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Which one of following statement is not true concerning the suitable sites of the direct acting relief valve and the pilot operated relieve valve?（）
A:the direct acting relief valve is used for controlling lower flows and pressure
B:the pilot operated relief valve is used for controlling higher flows and pressure
C:the pilot operated relief valve is used for controlling lower flows and pressure
D:the controlling accuracy of direct acting relief valve is worse than that of the pilot operated relief valve

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出自：海船船员证

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