填空题

Although it is not necessarily the case, it is sometimes said that koalas have a______.

【参考答案】

backward-opening pouch

<上一题目录下一题>

热门试题

填空题

Pap, a rich souse of’ protein, allows the mother koala to give her baby micro-organisms present in______.

填空题

Koalas living in an undisturbed habitat or in a zoo are supposed to have a greater life span than those living in suburbia.