填空题

Velcro is probably the most famous and certainly the most successful example of biological mimicry, or "biomimetics".

【参考答案】

Y

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填空题

Velcro is a product used to join other things together and was invented by a Swedish inventor.

问答题

有不少绝症病人和病人的家属认为安乐死应该合法化。 2．但是也有不少人不同意把安乐死合法化。 3．我的看法。