154A lot of changes have occurred in China in the last 30 years.A.happenedB.raisedC.appearedD3665
A lot of changes have occurred in China in the last 30 years. A.happened B.raised C.appeared D.disappeared 请帮忙给出正确答案和分析，谢谢！
A lot of changes have occurred in China in the last 30 years. A.happened B.raised C.appeared D.disappeared 请帮忙给出正确答案和分析，谢谢！