Image : 78a . gif the road works sign should be the first sign you see as you approach road works or other obstructions on the road way Image : 78a . gif当你驶近正在施工或有其他障碍物的路面时，首先见到的标志，应为图示的道路工程标志。
2.
Matchpoint ? a unit of scoring awarded to a contestant as a result of comparison with one or more other scores . see law 78a 比赛分? ?一种记分方法，将每副牌得分同其另一位或多个参赛者的成绩互相比较所得分数，为比赛分。参见第78条a 。
