表皮破损的番茄会很快腐烂，这说明表皮是（  ）

$0.\dot{7}$ ， $0.\dot{1}4\dot{7}$ ， $0.3\dot{1}\dot{8}$

一个外国作家说过：“要想吸引朋友，须有种种品行。自私、小气、妒忌、不喜欢成人之美、不乐闻人之誉的人，是不会获得朋友的。”这句话表明（     ）。 

阅读理解
   There is an old English saying.It tells us that we must go to bed early and get up early in the morning.Then we shall be healthy.We shall also be rich and clever.This is true.The body must have enough sleep to be healthy.Children of young age should have ten hours' sleep every night.Children who do not have enough sleep cannot do their work well and they may not be healthy.The body also needs exercise.Walking, running, jumping and playing games are all exercise.Exercise keeps the body strong.Exercise also helps the blood to move around inside the body.It is very important.Our blood moves to all parts of our body.The head also needs blood.Exercise helps us to think better.

一些外国研究者看来，中国的科举制度是世界历史上最具有开创性和平等性的官吏选拔制度，不但对中国的统一和社会稳定发挥了积极作用，而且对亚洲乃至欧美一些国家的文官制度产生了重要影响，堪称“中国第五大发明”。为什么外国研究者会有这种看法，你能说明理由吗？