什么是BUS？

The bus _____.Be careful when you____the bus. The bus is coming. Be careful when you _____the bus. 在正常情况下AC BUS1 向AC ESS BUS 及AC SHED ESS BUS提供电源。当AC BUS 1失去电源后，可以通过（ ）继续向AC ESS BUS 和AC SHED ESS BUS 供电。 在正常情况下AC BUS 1向AC ESS BUS 及AC SHED ESS BUS提供电源。当飞机在失去AC BUS 1和AC BUS 2电源的紧急情况下，（）将继续向AC ESS BUS 和AC SHED ESS BUS供电。 Riding on a bus without paying the fare ____ cheating the bus company. Don’t cut in line when you the bus at the bus stop. A sign at the bus stop helps you to know which bus to take. FDY设备和POY设备的DC-BUS功率是多少，能互换吗？为什么？ FDY设备和POY设备的DC-BUS功率是多少，能互换吗？为什么 Why ask me to take that early bus?— Because that bus _______ the 9:30 train at Boston . Do you go to school by bus every day?—Yes, I ________ take a bus. Bus表示（） bus(复数)__________ ______ the bus until it ______.. Look! The bus ______. The bus school will ______. CENTUM CS 3000系统中，Vnet网络电缆是冗余配置，当bus1电缆故障是，bus2电缆（） 以下对RBS200的TX-BUS与INTERNAL TX-BUS的描述，哪项是错误的？（） Jack ______ the bus as soon as it stopped; and then to his joy he met an old friend of his on that bus. When the school bus arrived at the zoo, the bus door ______ open and all the children rushed out.