题目内容：

    The "cloud war" is taking place as the dispute between the United States and China about data hacking and computer network security grows stronger. Chinese companies such as Alibaba, Baidu and Huawei are expanding within their country and gaining customers in other countries. They are creating data centers in multiple countries and trying to sell data management services throughout the world.

The increasing competition in cloud computing and storage incurs the new challenge and worries some experts. They are concerned about the safety of data. After all, companies often use the cloud to store important, confidential information and to operate such activities as data-driven machinery, telecommunications, banking and transport systems — including plans for driverless vehicles.

Lee Branstetter is an associate professor of economics at the Heinz School of Policy and Management of the Carnegie Mellon University. He told many multi-national companies "have serious concerns about the protection of their intellectual property （知识产权）."Branstetter said some of these large companies already believe they have lost valuable information.

Sheila Jasanoff is the director of the program on science, technology and society at Harvard's Kennedy School. She called the cloud computing industry "unruly". In other words, the industry is not strictly governed.

"People （in the business） are making rules as they go along or taking advantage of the lack of rules," Jasanoff said. She said cloud computing companies are not clear about what security measures they are promising customers. She is worried that a major accident may happen before governments realize the need for stronger rules in the cloud computing industry. She believes there should be internationally-accepted rules to meet the new challenge. But she does not believe an international agreement will be reached anytime soon.

1.What does the "cloud war" refer to?

A.The war up in the sky.

B.Some kind of cold war.

C.The China-US relationship.

D.The competition on the "cloud".

2.What concerns some experts according to Paragraph 2?

A.Information security.

B.Wars among countries.

C.The storage of “cloud”.

D.The lack of technology.

3.Which of the following may be consistent with Jasanoff's opinion?

A.A major accident is bound to take place soon.

B.An agreement is to be reached in the near future.

C.The cloud industry needs guiding and monitoring.

D.Governments have kept an eye on cloud industry.

4.What is the best title for the text?

A.China's Rise or Not

B.New War, New Challenge

C.Chances on Cloud Information

D.Growth of Cloud Computing Industry