【简答题】A lot of people like pets. I like them ,too. My favorite pet is a pig. I call him Pink Pig. The color of his skin is light pink. Pink is very clever and we keep him in the house. He is clean. He likes...
【单选题】听力原文: The University of California at Davis has government experiments with chemicals to get a bigger crop each year. But they haven't paid enough attention to necessary safety measures. In 1964 or 19...