— What should we do to reduce(减少) food waste?
— In a restaurant only order as ________as we need and try to eat it up.
A:much
B:many
C:more
D:most
某班学生完成对新鲜菠菜叶进行叶绿体中色素的提取和分离实验时,由于各组操作不同,出现了以下四种不同的层析结果。下列分析错误的是( )