The little girl could look after _________ though she was only five years old.
A:she
B:her
C:hers
D:herself
在托里拆利实验中,下面哪种情况能使玻璃管内外水银面的高度差发生变化
①良多趣味____ ②至于夏水襄陵____
③盖竹柏影也____ ④猛浪若奔____