题目

_______the problem of land erosion(侵蚀) is getting more and more serious, the government is searching for a way to deal with it. A. As       B. With 答案：A1．流经图中M处的洋流是（　　）A．本格拉寒流B．巴西暖流C．秘鲁寒流D．加那利寒流