Some of the first AIDS cases in the United States were reported in San Francisco more than 30 years ago.30多年前，旧金山就出现了一些美国最早的艾滋病案例。Lonner says for Chevron, good health is good business.Lonner说：“对于Chevron来说，身体健康就是商运亨通”___________________________.Chevron nearly has 60,000 employees worldwide.Chervon在全球有将近6万名员工。
