题目内容：

    Fifteen stores have been permanently barred from using Alibaba's online shopping platform for selling fake（伪劣的）or substandard surgical masks during the pneumonia outbreak caused by a novel coronavirus（冠状病毒）, the e-commerce giant said on Wednesday.

Five of the 15 online shops barred by Tuesday had been referred to public security bureaus（公安局）for further investigation, Alibaba said in a statement.

"We'll continue efforts to fight people making or selling fake goods related to epidemic（流行的）prevention and control on our platform and give them hard punishments, "it said, adding it had zero tolerance for such sellers.

Those engaging in price gouging（哄抬）or false advertising would also be punished more heavily, and the company said it would regularly disclose the names of problematic shops and the punishments they received.

“All the moves are not only to shoulder more responsibility for protecting consumers' interests, but also to show our utmost respect to online sellers who obey the laws and participate in the fight to prevent and control the epidemic,” it said.

Promising to let those engaging in improper or illegal behavior during the epidemic period go broke, with "no space to live in Alibaba", the company also called on other e-commerce platforms to shut their doors to such problematic sellers, and suggested government departments should add them to a dishonesty blacklist.

1.What does the underlined word "barred" most probably mean?

A.Encouraged. B.Banned.

C.Chosen. D.Forgiven.

2.Why are the five online shops invested by public security bureaus?

A.Because they might avoid further investigation.

B.Because they might have no licenses to sell medical articles.

C.Because they might make or purchase surgical masks illegally.

D.Because they might sell surgical masks on other e-commerce platforms.

3.What does Alibaba expose the names of those shops and their punishments for?

A.Advertising Alibaba's online shopping platform.

B.Getting more money from public security bureaus.

C.Punishing buyers who buy fake or substandard goods.

D.Protecting consumers' and online sellers' proper interest.

4.What is the last paragraph mainly about?

A.Alibaba's zero tolerance for bad dealers.

B.Government's punishment for dishonesty.

C.Support from other e-commerce platforms.

D.Improper or illegal business behavior of sellers.