雨天对安全行车的主要影响是什么？
A．电器设备易受潮短路
B．路面湿滑，视线受阻
C．发动机易熄火
D．行驶阻力增大
参考答案：B
组合逻辑电路的组成？
Which of the following statements is NOT true of the global tourism industry
A．The tourism industry is undergoing restructuring in parts of the world.
B．It remains thoroughly fragmented and widely distributed.
C．It yields considerable annual profits.
D．It creates more than 200 million jobs globally.
