题目内容：

    The giraffe is the tallest modern land animal. 1. Its neck alone may be 1.9 metres long.2.the same number as in the human. Even a small bird has many more bones in its neck than in a tall giraffe. Each bone in a giraffe's neck is very long,3. That makes the difference. A female giraffe gives birth to one baby at a time. 4.By the age of eight it is full-grown. The giraffe eats mostly leaves. Because it has a long neck,5.

A.it can reach the leaves high up on the trees.

B.The baby, called a calf, is about 1.9 metres tall at birth.

C.Yet the giraffe has only seven bones in its neck,

D.It can be over 5.5 metres tall.

E.while the bones in a human neck are small.