跨国采购的基本要素可以归结为四个流，即商流、物流、信息流和资金流。( )
参考答案：对
—Tom, I'm afraid you should improve your English. You need some time to practice.
—________. [ ]
A. OK, I will
B. Thank you. I need.
C. I hope too
D. I will have a good practice
线绕可变电阻(额定功率30瓦)
