由双方的价值交换所构成的是()。A、关系B、网络C、交易D、交换 发布时间:2019-02-13 12:32 │ 来源:www.tikuol.com 题型:单项选择题 问题: 由双方的价值交换所构成的是()。A、关系B、网络C、交易D、交换
题型:单项选择题 —Hi, Li Xiaoxia. What a surprise! Dad _____ you _______ so early. He’s upstairs reading. I’ll just call him.A.didn’t know; would come B.doesn’t know; are comingC.hadn’t known; were coming D.hasn’t known; will come 查看答案