请用英语举例.Since 1949 great changes have taken place in our motherland.

问题描述:

请用英语举例.Since 1949 great changes have taken place in our motherland.

1.Great victories were won in the fight against massive natural disasters.2.The Beijing Olympics and Paralympics were held successfully.3.The Shenzhou VII manned space mission was a complete success.4.The number of its poor rural population dropped from 250 million to 23 million.