谈判群体内部决策方式通常表现为两种，即______
A．消极决策
B．个人决策
C．积极决策
D．集体决策
E．折中决策
参考答案：B,D
根据上句完成下句，使两句意思表达基本相同。
1. Yesterday afternoon it rained heavily, so I borrowed an umbrella from Ed.
Yesterday afternoon it rained heavily, so Ed _____ _____ an umbrella.
2. Allan went to play football with his friends at once after he finished his homework.
_____ _____ _____ he finished his homework, Allan went to. play football with his friends.
指出本次事故的直接原因。
