题目内容：

    China will continue to improve its policies and beef up support to speed up commercial use of the 5G network, an official with the country’s top industry regulator said on Tuesday.

Wen Ku, a spokesman for the Ministry of Industry and Information Technology, said the ministry will continue to support the development of the super-fast fifth-generation wireless technology by telecom carriers and encourage local authorities to come up with more support policies.

Chen Zhaoxiong, vice-minister of Industry and Technology, said that the development of the 5G network could give rise to massive opportunities in industrial growth and job creation. The ministry will make continuous efforts to promote the use of 1000Mb broadband connections and expand the coverage of fiber-optical broadband services, he said. Meanwhile, the ministry will upgrade telecom networks and operation systems by the end of November to ensure that mobile phone users nationwide can switch service carriers without changing phone numbers, he said. He explained that it could require substantial (大量的) efforts as it involved the upgrading of operation systems of a total of 1.6 billion users in the country.

In the meantime, a “floor-price” will be set for low-income and elderly populations to further promote mobile networks, he said. In order to better protect the rights of consumers, the number of service packages offered by the telecom carriers will be trimmed(削减)by more than 15 percent this year, according to Wen. Carriers are also required to make public all their service packages and make them all available for the users, he added. “We will step up investigations on wrongdoings so that consumers can see their telecom bill plain and clear,” he said.

China has expanded the download speed of mobile broadband sixfold compared with five years ago, while the charges for broadband connections and mobile Internet were down by 90 percent, according to the Ministry of Industry and Information Technology.

China’s digital economy reached a total volume of 31 trillion yuan ($4.5 trillion), or 34.8 percent of its GDP, in 2018, according to the ministry.

1.Which of the following best explains “beef up” underlined in Paragraph 1?

A.Obtain. B.Focus. C.Attract. D.Strengthen.

2.According to Paragraph 4, Chen Zhaoxiong’s attitude towards the 5G network is ______.

A.uncaring B.doubtful C.positive D.negative

3.What can you know about the 5G network from the text?

A.Its development could bring more chances in job creation.

B.Its charges are higher than former networks.

C.It is already widely used in commerce.

D.Its download speed is sixfold faster than former networks.

4.What can be a suitable title for the text?

A.The Advantages of 5G Network

B.Efforts Made for 5G Network

C.Concerns for 5G Network

D.The Rapid Development of 5G Network