A combination or all-purpose nozzle produces（）.<br>A:low-velocity fog only<br>B:a solid stream only<br>C:a solid stream and foam<br>D:a solid stream and fog

A combination or all-purpose nozzle produces（）.
A:low-velocity fog only
B:a solid stream only
C:a solid stream and foam
D:a solid stream and fog

出自：海船船员证

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