题目内容：

In fairy tales, it's usually the princess that needs protecting. At Google in Silicon Valley, the princess is the one defending the castle. Parisa Tabriz is a 31-year-old with perhaps the most unique job title in engineering- “Google Security Princess”. Her job is to hack into the most popular web browser（浏览器）on the planet, trying to find weaknesses in the system before the “black hats” do. To defeat Google's attackers, Tabriz must firstly think like them.

Tabriz's role has evolved dramatically in the eight years since she first started working at Google. Back then, the young graduate from Illinois University was one of 50 security engineers---today there are over 500.

Cybercrime（网络犯罪）has come a long way in the past decade - from the Nigerian Prince Scam to credit card theft. Tabriz's biggest concern now is the people who find bugs in Google's software, and sell the information to governments or criminals. To fight against this, the company has set up a Vulnerability Rewards Program, paying anywhere from $100 to $ 20, 000 for reported mistakes.

It's a world away from Tabriz's computer-free childhood home in Chicago. The daughter of an Iranian-American doctor father, and Polish-American nurse mother, Tabriz had little contact with computers until she started studying engineering at college. Gaze across a line-up of Google security staff today and you'll find women like Tabriz are few and far between（稀少的）--- though in the last few years she has hired more female tech geniuses. She admits there's an obvious gender disequilibrium in Silicon Valley.

Funnily enough, during training sessions Tabriz first asks new colleagues to hack into not a computer, but a vending machine. Tabriz's job is as much about technological know-how（专门知识）as understanding the psychology of attackers.

1.What can we learn about Tabriz from the passage?

A. She was the first female engineer at Google.

B. She must think differently so as to defeat the attackers.

C. Her job relates to not only technology but also psychology.

D. Her frequent contact with computers in childhood benefits her a lot.

2.Why has Google set up a Vulnerability Rewards Program?

A. To protect Google against cybercrime.

B. To monitor the normal operation of Google.

C. To help the government locate the cybercriminals.

D. To raise people's awareness of personal information safety.

3.What does the underlined word “disequilibrium” in Paragraph 4 refer to?

A. Imbalance.    B. Preference.

C. Difference.    D. Discrimination.

4.Which of the following could be the best title of this passage?

A. What leads to cybercrime

B. The “Security Princess” who guards Google

C. Measures taken by Google to protect its users

D. How to become an excellent security engineer