题目内容：

    Many people will be familiar with automated writing through Gmail. Smart Reply provides brief answers to routine emails. If someone asks “Do you want to meet at 3 pm?”, Gmail offers one-click responses such as “Sure!”

The New Yorker’s John Seabrook recently described a more powerful version of this technology, called GPT-2, which can ably mimic (模拟) his magazine’s style. Such systems use a digital network of billions of artificial “neurons” (神经元) with virtual “synapses” — the connections between neurons — that strengthen as the network “learns”, in this case from 40 gigabytes（千兆字节）— worth of online writing. The version Mr. Seabrook tested was polished with back-issues of the New Yorker.

The metaphor of the brain is attractive, but “neurons” and “synapses” deserve those scare-quotes     ( 双引号). The system is merely making some—admittedly very complex—statistical guesses about which words follow which in a New Yorker-style sentence.

What escapes computers is creativity. They cannot create a topic or goal on their own, much less plan how to get there with logic and style. At various points in the online version of his article, readers can see how GPT-2 would have carried on writing Mr. Seabrook’s piece for him. The writing gives the impression of being human. But on closer inspection it is empty, even incoherent.

Meaningless writing is the preserve of artificial intelligence. But to truly write, you must first have something to say. Computers do not. They await instructions. To compose meaningful  essays, the likes of GPT-2 will first have to be integrated with databases of real-world knowledge.

1.Why does the author mention Gmail in the first paragraph?

A.To prepare for the introduction of the topic. B.To advertise the powerful Gmail.

C.To describe the feature of Gmail. D.To prove the strength of the Gmail.

2.In what way is GPT-2 more powerful than Gmail?

A.It is creative. B.It has neurons with synapses.

C.It can offer quick answers. D.It can follow a certain writing style.

3.What can we learn from the last two paragraphs?

A.GPT-2 is powerful because it is integrated to real-world knowledge.

B.GPT-2 has already been able to write meaningful essays.

C.GPT-2 still has a long way to write like humans.

D.GPT-2 can help Mr. Seabrook with writing very well.

4.Where is the passage taken from?

A.A brochure. B.An advertisement.

C.A magazine. D.An essay.