The largest earthquake (magnitude 里氏 9.5) of the 20th century happened on May 22,1960 off the coast of South Central Chile. It generated(生成) one of the most destru
When I was in seventh grade, I was a candy striper (护士助手) at a local hospital in my town. I volunteered about 30 to 40 hours a week during the summer. Most of the time I spent