B,tell后面是两个并列的成分,两者可互换位置,即Elephants have their own way to tell (whether) it is rough or smooth and the shape of an object . whehter .or.应该知道吧 这里tell是分辨的意思.
4.Elephants have their own way to tell the shape of an cbject and( b)it is rough or smooth. a.- b whether c.how d.what tell后面是两个并列的成分,两者可互换位置,即Elephants have their own way to t...