A—Cameras Forbidden B—Children Not Admitted C—Criticisms And Suggestions Welcome D—Don’t Touch High-Tension Wire E—For Use Only In Case Of Fire. F—Inspections Declined G—Keep Off The Grass H—Keep Silence I—Night Bell J—No Business Today K—Out Of Bounds L—Reserved M—Round-The-Clock Business N—Seat By Number O—See To The Fire P—Please Keep Hands Off ( )昼夜营业 ( )谢绝参观