下列完全用肺呼吸的一组动物是（ ）
A．蚯蚓和蝗虫
B．鲫鱼和袋鼠
C．青蛙和金丝猴
D．袋鼠和骆驼
大部分陆生动物一般都具有能在空气中呼吸的，位于身体内部的各种呼吸器官，如昆虫的气管、兔的肺等，
A、蚯蚓用湿润的体壁呼吸，蝗虫用气管呼吸，故不符合题意；
B、鲫鱼用鳃呼吸，袋鼠用肺呼吸，故不符合题意；
C、青蛙用肺和湿润的皮肤呼吸，金丝猴用肺呼吸，故不符合题意；
D、袋鼠和骆驼都用肺呼吸，故不符合题意．
故选D
A: Would you mind coming here, dear? B: OK.I am coming right away. 【1】 A: You see, there is lots of housework in the kitchen. B：【2】 A: Yes, you do. And you have to help me cook dinner. B: OK. When I finish, could you help me with my homework? A: Your homework? 【3】 B: No,I haven't. It's too difficult for me. A: 【4】 B：Since breakfast. A: You know, dear, I'm afraid I can't help you. I'II have to do some shopping after lunch. B: But what about my homework? A:I think you should make a telephone call to your friend, Jane,【5】 B：That's a good idea.
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