A:had she gone
B:she had gone
C:has she gone
D:she has gone
洋葱鳞片叶内表皮细胞具有,而人体细胞中没有的结构是( )
①公民的权利与义务是统一的
②税收是国家财政支出的基础
③在我国,税收取之于民、用之于民
④税收具有无偿性和固定性
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.
A、冰 B、C60 C、高锰酸钾 D、____.