阅读下文，回答相关问题。
                                                                                                             西   楼^①
                                                                                                               曾 巩
                                                                                    海浪如云去却回，北风吹起数声雷。
                                                                                    朱楼四面钩疏箔^②，卧看千山急雨来。
                                                 注：①西楼，即诗中的朱楼，它依山面海。②钩珠箔，把帘子挂起。

根据短文内容，选择正确答案
B
    We can not live a modern life without travelling. The fastest way of travelling is by air. With a plane one can travel in one day to places which it takes a month or more to get to a hundred years ago. 
    Travelling by train is slower than by plane, but one can see the country while-he is travelling through. Modern trains have comfortable seats and dining-cars. They make even the longest journey enjoyable.
    Some people prefer to travel by sea when possible. There are large luxury liners(客轮) or river boats. They are not as fast as trains or planes, but travelling by sea is a very pleasant way to spend a holiday.
    Many people like to travel by car. They can make their own timetable. They can travel hundreds of miles a day, just as their wish. They can stop wherever they want to see something interesting or to enjoy a good meal at a good restaurant, or to spend the night at a hotel. That is why people choose travelling by car for pleasant trips, while they usually take trains or planes for business.

已知函数$f\left(x\right)=\left|lgx\right|$，$a>b>0$，$f\left(a\right)=f\left(b\right)$，则$\frac{a^2+b^2}{a-b}$的最小值等于（  ）.

补全对话：

①  What's your name? ____ 

②  Nice to meet you again. ____

③  How are you?____

④  Where are you from? ____

⑤  Good morning boys and girls.____

a.  My name is Amy.      b.  Fine, thank you.         c. Nice to meet you, too.

d. Good morning, Mr. Black    e.  I'm from the USA

20世纪70年代以来，生物科学的新进展、新成就如雨后春笋，层出不穷．为了解决不孕症，1978年诞生了世界上第一例“试管婴儿”．为了证明高度分化的动物体细胞的细胞核仍然优质有全能性，1997年第一只克隆动物“多莉”问世．“试管婴儿”和克隆动物的生殖方式是（  ）