某同学以新鲜洋葱鳞片叶内表皮为材料,经不同处理和染色剂染色,用高倍显微镜观察。下列描述正确的是( )
A:经吡罗红甲基绿染色,可观察到红色的细胞核
B:经吡罗红甲基绿染色,可观察到绿色的细胞质
C:经健那绿染色,可观察到蓝绿色颗粒状的线粒体
D:经苏丹III染色,可观察到橘黄色颗粒状的蛋白质
sun mountains birds river flowers what rainbow park clouds nice
This is a nature ____ .There is a ____ and some ____ in the sky.There are two ____ flying in the sky.Look! There is a beautiful ____ between the two ____ .There is a long ____ on the grass.There are some ____ on the grass. ____ a ____ picture it is!