题目内容：

Google, hoping to put down a protest by employees upset that the technology they were working on could be used for deadly purposes, will not renew a contract with the Pentagon(五角大楼) for artificial intelligence work when a current deal expires next year.

Diane Greene, who is the head of the Google Cloud business that won a contract with the Pentagon’s Project Maven, said during a weekly meeting with employees Friday that the company was backing away from its AI work with the military, according to a person familiar with the discussion but not permitted to speak publicly about it.

Google’s work with the Defense Department on the Maven program, which uses artificial intelligence to interpret video images and could be used to improve the targeting of drone strikes, riled the internet giant’s workforce.

About 4,000 Google employees signed a petition（请愿书） demanding “a clear policy stating that neither Google nor its contractors will ever build warfare technology,” and a handful of employees resigned in protest.

The money for Google in the Project Maven contract was never large by the standards of a company with profit of $110 billion last year — $9 million, one official told employees, or a possible $15 million over 18 months, according to an internal email.

But some company officials saw it as an opening to much greater revenue down the road. In an email last September, a Google official in Washington told colleagues she expected Maven to grow into a $250 million-a-year project, and eventually it could have helped open the door to contracts worth far more.

1.What does the underlined word “renew” most probably mean?

A. fix    B. sign    C. recover    D. extend the period of time

2.Why did Google employees go on rebellions protest?

A. Because they were not paid enough.

B. Because they thought Google should go on cooperate with Pentagon.

C. Because they thought the company cheated them about the Maven Project.

D. Because they thought Google should end the cooperation on a warfare technology with Pentagon.

3.The last two paragraphs are aimed to _______________________.

A. show what else Google could do to make money

B. show what consisted of the revenue of Google last year

C. show what big loss of revenue Google’s decision of giving up the cooperation with Pentagon will cause

D. show the money that the Project Maven contract Google brought last year was not large by the standards of a company with revenue of $110 billion last year

4.What can we infer from the article?

A. Google chose humanity over profit.

B. The employees’ rebellions didn’t work at all.

C. Pentagon will definitely give Google a big lesson.

D. Google is a company that is not qualified enough in the field of AI technology.