If separating effect is not good, which measure should be taken （）<br>A:working at intervals and properly heating<br>B:warming up to 70℃, increase water supply flow<br>C:improving impulse of water supply<br>D:reducing water supply flow

If separating effect is not good, which measure should be taken （）
A:working at intervals and properly heating
B:warming up to 70℃, increase water supply flow
C:improving impulse of water supply
D:reducing water supply flow

出自：海船船员证

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