A:取用锌粒
B:氧气验满
C:滴加液体
D:读取液体体积
— My little sister is crying now. What should I do to cheer her up?
—Maybe you can give her some snacks.
小王的手指不慎划破出血,血液中与止血和避免发炎有关的成分分别是( )