单项选择题A．How to acquire the necessary skill.B．How to find a job of high salary.C．How to design a reliable interview.D．How to hire the type of service people you need.

单项选择题A．Alcohol helps develop people’s intelligence.B．Heavy drinking is not necessarily harmful to one’s health.C．Controlled drinking helps people keep their wits as they age.D．Drinking, even moderately, may harm one’s health.