估价资料的收集要求()。
A.合法
B.详细
C.准确
D.及时
E.完整
参考答案:B, C, D
Rather than ______ the plane all the way, they decided _______ to Vancouver.
A.taking, flying
B.take, to flying
C.take, to fly
D.to take, to fly
简述口头谈判的优缺点。