题目

下列说法中不正确的是     A．自然界中不存在游离态的硫     B．二氧化硫能使酸性高锰酸钾溶液褪色，表现了SO2的还原性     C．二氧化硫能使品红褪色，体现了SO2的漂白性     D．祖母绿的主要成分为Be3Al2Si6O18，用氧化物形式表示为3BeO·Al2O3·6SiO2 答案：A5．31．What is the Japanese White-eye？AA．A kind of birdB．A famous singerC．A small townD．A kind of snack32．Bill took a lot of pictures during his trip in Taiwan．Which one is the picture he took on July 12？DA．B．C．D．