跑或跳时人呼吸的次数比休息时( )。
A:增多
B:减少
C:一样多
根据句意及首字母提示完成单词
(1) My favourite drink is orange j____ .
(2)Fruit and v____ are good for our health.
(3)He is thirsty (口渴的). He drinks lots of w____.
(4) What k____ of fruit have you got?
(5)I like eating fish. It's very d____.
下列目镜和物镜的组合中,所观察到的细胞数量最多的是( )