第 31 至 35 題為題組 One of the most difficult..-阿摩線上測驗
1F 方蔥香 小三上 (2018/06/04)
One of the most difficult things for a human to face is the loss of a limb. If a person loses an arm or a leg, he/she must be fitted with an artificial limb. The situation is very different for a starfish. If a starfish loses an arm, it can grow a new one. The same thing happens for lobsters, salamanders, and many other animals. Snails can even regrow their heads—imagine what the world would be like if humans could do that. But we can’t. Nor can we grow new limbs or even fingers. That’s why scientists are studying animals that can regrow body parts, that is, regenerate. Humans aren’t com... 查看完整內容 |
2F 【站僕】摩檸Morning 國三下 (2019/09/03)
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