Going back to " im" , " b" , " m" , " p" .

回到“im”、“b”、“m”、“p”。

OK, good idea. How far can a gibbon’s voice travel through the forest? Is it a) 500m b) 1km or c) 5km?

好主意。长臂猿的叫声在森林中能传播多远？是a)500米？b)1000米？还是c)5000米？

OK, let’s have the answer to the quiz question. Earlier I asked: How far can a gibbon’s voice travel through the forest? Is it: a) 500m b) 1km or c) 5km?

好的，让我们来揭晓今天测试题目的答案。之前我问你：长臂猿的叫声在森林中能传播多远？是a)500米？b)1000米？还是c)5000米？