If a towing vessel and her tow are severely restricted in their ability to change course，they may show lights in addition to their towing identification lights. These additional lights may be shown if the tow is（）.
举一反三
- First of all, the lights are very attractive. They are headlights, turning lights, fog lights, taillights ，brake lights and so on. These lights help drivers to have a good visibility in poor conditions and give singals to show the intentions.
- What are the lights that the lighting system contains? A: headlights B: brake lights C: instrument-panel lights D: courtesy lights
- A ________may be given ____means of flags, lights, and guns. A: sign; by B: signal; in C: signal; by D: sign; in
- The fact that the Brazilians regard traffic lights as a kind of roadside decoration suggests that A: traffic lights are part of street scenery. B: they simply ignore traffic lights. C: they want to put them at roadsides. D: there are very few traffic lights.
- The share the same switch. A: navigation lights and flashing beacon B: rear dome light and courtesy lights C: strobe lights and courtesy lights