五一假期，小华同学的全家去旅游，在高速路上看到如图所示标志牌，小华发现小轿车、大型客车、载货汽车最高行驶速度不同．爱思考的小华想：为什么要对机动车的最高行驶速度进行限制？为什么在同样的道路上，对不同车型设定不一样的最高行驶速度？请你从“能量”角度，用相关知识解释此现象．

材料：2016年2月共有67797人在德国联邦移民与难民局申请避难，与去年同期相比增长159．9%。2016年1至2月德国接收的难民人数已超过10万人。汉堡港是德国最大的港口，基尔运河是北海和波罗的海的重要通道。近些年来，易北河入海口水域出现了水运拥堵严重等问题。下述为欧洲局部简图和甲、乙两地各月降水量统计图。

阅读理解

    Have you ever been to Ireland? If not, you should think of spending a vacation there. The Republic of Ireland stands in the south of the island. There are about 3,470,000 people in the country and the weather is quite wet but warm. Falls of snow in Ireland are most unusual.

    Ireland is full of interesting things to do. You'll find restaurants and cafes everywhere. Most of them have a long list of Irish food and drinks. After your meal, you can take a walk along the shore. The countryside is good for horse riding. Other sports you may want to do are sailing, boating, swimming, fishing and golfing. Ireland is famous for its theaters and festivals. So why don't you stay longer for a party, an opera or a concert?

    The Irish people are kind and friendly. From mountains to beaches you will find people ready to stop and talk about the weather, the local geography or history and maybe about what you should see next. The Irish people have kept their own culture of music and literature well. Different areas have different kinds of music. In towns and villages people gather together in the evening to sing and play music. They also get together to read their own poems to each other. Meeting such people is really fun, isn't it?

根据短文内容判断正误。

阅读下面的文言文，完成问题。

    某山隅有一老圃，早失偶，惟一女远适他乡。猎者怜其孤，赠以猴。老者爱如赤子，每出必从，不链不掣，而不离不逸。如是者五年。一日，老者暴卒猴掩门奔其姐泪如雨。曰：“父死乎？”颔之，乃俱归。老者家徒壁立，无以为养，猴遍哭于乡，乡人乃资而掩。姐引之去，猴揖谢之，仍牢守故宅，撷果自食。每逢五必哭祭，似念老父养之五年，哀伤殊甚。未三月而偃卧坟间。乡人怜之，乃葬于老者之侧，勒石其上，曰：“义猴之墓”。