“青春励志故事”人物许振超作为“文革”时期毕业的“老三届”,迎来国家经济转型新阶段,成为了世界一流的“技术专家”。他敢想敢干、能干会干、苦干实干,并且带出了“王啸飞燕”“显新穿针”“刘洋神绳”等一大批具有社会影响的工作品牌。从许振超身上我们可以看出(　　)

①新时期仍需要发扬艰苦奋斗精神

②新时期要大力发扬艰苦创业精神,尤其是开拓创新精神

③只要具有艰苦奋斗精神就会取得伟业

④艰苦奋斗集中表现为开拓创新精神

    It is popular to travel by bike in China. China has a huge population. And it is said that there is at least one bike for every two people. Of course, many people in China ride bikes for sport or exercise, but it is also a much more commonly accepted means of everyday transportation, as compared to countries such as the United States.

    If you are living for a long time in China, chances are that you will want to buy your own bike so that you can use it whenever you want. Even if you don't use a bike for everyday transportation, owning one can be a great way to enjoy the sights in the countryside. However, if you are just visiting China, renting a bike can be a more convenient choice.

    It is important to choose the correct bike for your use. You will find that in China, the one-speed style of bike is popular. These bikes are great if you want to ride around in the city to see the sights. They are quite comfortable and easy to ride. You can often rent a bike for a day for about 15 dollars.

    However, if you wish to ride on some of the rural paths, a mountain bike style would be a better choice. They are great for different kinds of road surfaces, providing for a safer ride. If you are planning to have a wish to tour and still be able to carry packages with you, then a touring bike would be the best choice. These are the most expensive to rent, but are very suitable for carrying packages and even some of your luggage along with you.

已知$f\left(x\right)=\left\{\begin{array}{c}\left(3-a\right)x-\frac{3}{2},x<1\\ {\log }_{a}x,x\ge 1\end{array}\right.$是$\left(-\infty ,+\infty \right)$上的增函数，则实数a的取值范围是（ ）

野池

【唐】王建

野池水满连秋堤，菱花结实蒲叶乔。

川口雨晴风复止，蜻蜒上下鱼东西。