在EXCEL2000中，打开用户定义的样式所在的文件，才能删除样式。

A．正确

B．错误

If not attached to the nozzle,each low-velocity spray applicator on a vessel must be stowed（）.

A.in a protected area on the main deck

B.inside a machinery space near the entrance

C.next to the fire hydrant to which the fire hose is attached

D.on a rack inside the quarters near the entrance