在班轮航线参数中,第一个始发港至最后一个目的港的距离称为港间距离。( )
参考答案:错
仅用绿色或红色图形构成标志的标志灯具,其表面最小亮度不能小于(),最大亮度不大于()。
A.5cd/m2,300cd/m2
B.10cd/m2,300cd/m2
C.15cd/m2,300cd/m2
D.50cd/m2,300cd/m2
Ancient athletes competed as individuals, not on national teams, as in the modern Games.