A:CO2
B:Na2SO4
C:Cl2
D:NaOH
细胞的结构和功能是相适应的,下列叙述中正确的是
看图读一读,连线。
① ____ A. It's cloudy. I like cloudy days.
② ____ B. It's windy. I like windy days.
③ ____ C. I don't(不) like rainy days. I like sunny days.