将某植物放置在黑暗处一昼夜后,选取一叶片按图甲处理,照光几小时后,摘下叶片,去掉锡箔,经脱色、漂洗再碘液处理,结果如图乙所示.下列分析中错误的是( )
A:该实验能说明光合作用需要叶绿体
B:该实验能说明光合作用需要光
C:在进行叶片脱色处理时需隔水加热
D:置于黑暗处一昼夜的目的是消耗淀粉
下列各句中,没有语病的一句是( )
This is a photo of my family . I'm John . I'm ten . My sister is seven . We are in the same school .My grandparents are Americans . My father is 42 .He is a driver . My mother is 40 . She is a teacher . We are very happy .