题目内容：

About three decades ago, China was known as the “Bicycle Kingdom”. But the two-wheeled way of transport’s popularity began to fade, with many bikes soon replaced by their fuel-powered competitors.

But recent months have seen a revival of the bike across China, with an increasing number of people choosing cycling instead of driving to schools, to workplances or to do sightseeing. The introduction of bike-sharing systems has brought the trend to a new level.

People can unlock the shared bikes by simply using their smartphones. The bikes are equipped with GPS and can be left anywhere in public for the next user. They’re popular among many Chinese people as they provide an effective solution to the “last mile” problem, which refers to the final leg of a person’s journey.

However, the systems have also led to problems such as illegal parking, damage and theft. Last month, two nurses in Beijing were placed under arest for five days for putting locks on two shared bikes.

“Bike-sharing is a greener method of transportation and provides a user-friendly experience,” said Liu Xiaoming, vice-minister of transport. “ But it’s a combination of online and offline business. Operators are usually strong in online services, but lack offline business experience, which causes problems.”

Now, Chinese service operators are trying to handle these problems. For example, a bike-sharing company called Mobike sets a 100-piont credit score for each user, with points taken in the case of bad behavior. Once a score drops below 80, bike rental is increased to 100 yuan per 30 minutes, up from 0.5-1 yuan.

1.The underlined word “revival” in paragraph 2 probably means         .

A. survival    B. recovery

C. existence    D. popularity

2.The bike-sharing systems are popular because        .

A. they are very effective    B. they can be picked up anywhere

C. they are equipped with GPS    D. they help to solve the “last mile” problem

3.To solve the problems of illegal parking, damage and theft, operators need to         .

A. offer stronger online services    B. combine online and offline business

C. provide credit score for users    D. obtain more offline business experience