逻辑题。

1. A man sells water. What does he first think of when he sees a river?

    Answer: _____                                                                

2. A car travels at a speed of 40 mph over a certain distance and then returns over the same distance

    at a  speed of 60 mph.What is the average speed for the total journey?

    Answer: _____                                                                

言语沟通可分为两种，即（）。

A、口头沟通与有声沟通

B、口头沟通与无声沟通

C、口头沟通与书面沟通

D、口头沟通与非言语沟通