[阅读理解]

【题干】Hares and Rabbits<br />One of the gentlest of all animals is the hare. When you consider how mild<br />this animal is, you might wonder how it can survive in a world full of enemies.<br />But then you've also probably noticed its strong hind (后面的) legs. Those legs<br />give it plenty of speed. And you know how rapidly hares and rabbits breed (繁殖).<br />That's another reason why they manage to survive.<br />Hares and rabbits have long, sharp front teeth. Their hind legs are longer than<br />their front legs so that they run faster uphill than downhill. When they are hunted,<br />they use tricks such as taking huge leaps to break the smell or signal danger to<br />each other by hitting the ground with their hind feet. Hares and rabbits are purely<br />vegetarians (素食者). They can live very well on the inner bark of trees.<br />There are many differences between hares and rabbits. Hares are larger, and<br />their feet and ears are longer. Hares do not dig holes or live in groups, as do<br />rabbits. Hares are born open- eyed and with thick fur, while rabbits are born blind<br />and hairless.<br />North America is the home of many different types of hares. One of the best<br />known is the jack hare, a large hare with very long ears. Jacks are so fast that they<br />can sometimes make a leap of six meters.<br />The March hare, whom we know from Alice in Wonderland, is a common<br />European hare. In March, they are always busy in mating, thus acquiring its name.
Unlike hares, rabbits are social animals, living together in holes. A rabbit may
mate when it is six months old and
its young are born within a month. So if the
rabbit has no natural enemies, it can become quite a pest.

【题目】【阅读选择】People are curious about the survival of the hare because
A. their legs are not strong enough
B. their growth is not fast enough
C. they are too gentle
D. they run too slow

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