阅读短文，从A、B、C三个选项中选出一个正确答案，并将答案序号写在提前括号内。
China Calls for Unified International Rules Against Internet Crime
Cyber security has always been a serious issue as the Internet industry is ever growing. Nowadays, people can easily connect to the Internet with a simple click of a mouse. But the global network can be easily destroyed by a single leak. The world is facing a difficult situation in keeping web security.
Currently, there are no unified international rules for maintaining Internet security. China has called for unified international rules against Internet crime. Last year China and some other countries handed in a draft Code of Conduct on Information Security to the UN.
World leaders and experts discussed the possible Internet threats facing the world. They agreed that the only way to deal with Internet security threats was to trust each other and strengthen cooperation. The threats cannot be solved by any one country alone. And for these reasons, countries would have a greater chance of trusting each other in dealing with such threats.
Though great efforts were made to issue common regulations for the Internet, few results have been achieved yet. There's still a long way to go for unified global Internet security rules and regulations.
1. Maintaining web security is ______ for the world.
A. easy B. a piece of cake C. difficult
2. There are ______ to maintain cyberspace security.
A. no unified international regulations
B. unified international regulations
C. worldwide unified regulations
3. The only way to deal with cyber security threats was to ______.
A. depend on China and the United Nations
B. strengthen international cooperation and trust each other
C. ask world leaders and experts for help
4. ______ results have been achieved in terms of common regulations for the Internet.
A. A lot of B. Few C. Good
5. ______ submitted a draft Code of Conduct on Information Security.
A. China only B. The United States C. China and some other countries