跨国公司在结构方面的特征主要表现在（）。
A．营业规模
B．经营环境
C．地理分布
D．股权结构
参考答案：A, C, D
—Do you know about the accident which happened in the center of the city?
—Yes. But it was some time we realized the truth.
A．before
B．when
C．since
D．until
