问题 阅读理解

阅读理解。

     Italians like to say that when it comes to alcohol, they have a sipping (小酌) culture rather than a drinking

culture. That means that while Italians may enjoy a glass of wine or beer, they don't usually get very drunk.

     That's not true any more. The new study by the Italian National Health Institute found that 63 percent of

Italians under age 18 get drunk on the weekends. Now, the city of Milan has created a law that will stop anyone under 16 from buying alcohol. Anyone who sells or gives alcohol to a person under 16 can be fined up to $700.

     Young people who feel that the new law is unfair should go to the US for some perspective (观点). The US

has the highest drinking age in the world: It's illegal for anyone under 21 to buy alcohol, and stores or restaurants that are caught selling alcohol to people under the legal age risk losing their licenses.

     Many young Americans complain that the drinking laws are unfair: They are allowed to vote in elections and

join the army at age 18, so why wait another three years just to buy a bottle of beer?

     These young people have found help in an unusual place. Last year, more than 100 presidents of US

universities joined together to ask lawmakers to consider changing the drinking age. They argued that the law

doesn't stop underage college kids from getting drunk - it just makes them want to drink more.

     For now, the law seems unlikely to change. But US teenagers who want alcohol can go north to Canada,

where the drinking age is 18-19, or south to Mexico where the legal age is 18. Throughout much of Asia,

Africa and Europe, the legal drinking age ranges 16-18.

     In plenty of places though, the official drinking age is ignored, and even young children can buy alcohol if

they have the money to pay for it.

     No matter how old you are, you should always be responsible with alcohol. Teenagers in Milan are now

learning that their reckless (不顾后果的) drinking behavior may come at a high price. By Ariel Lown Lewiton,

21st Teens Staff

1. The new law by the city of Milan _______.

A. aims to keep Italy's sipping culture alive

B. forbids selling alcohol to people under 16

C. is welcomed by Italian young people

D. has reduced the number of underage youths getting drunk

2. Which of the following places has the lowest drinking age?

A. Milan

B. New York

C. Mexico

D. Canada

3. Many US university presidents want lawmakers to consider changing the drinking age because ______.

A. they've received complaints from many young Americans about the unfairness of the laws

B. they agree that people old enough to vote and join the army should be allowed to drink

C. they believe the law is pushing underage youths toward alcohol instead of stopping them

D. they don't want to see US teenagers going to neighboring countries for a drink

4. What can we infer from the passage?

A. Restaurants in the US don't sell alcohol to people under 21 for fear of a $700 fine.

B. The author thinks that US teenagers should go to Canada or Mexico to drink.

C. In many places, shop owners don't mind selling alcohol to underage customers.

D. Teens in Milan have to pay a lot of money for their reckless drinking behavior.

答案

1-4: BACC

问答题

阅读以下关于嵌入式软件体系架构的叙述,在答题纸上回答问题1至问题3。

某公司承担了一项宇航嵌入式设备的研制任务。本项目除对硬件设备环境有很高的要求外,还要求支持以下功能:

(1)设备由多个处理机模块组成,需要时外场可快速更换(即LRM结构);

(2)应用软件应与硬件无关,便于软硬件的升级;

(3)由于宇航嵌入式设备中要支持不同功能,系统应支持完成不同功能任务间的数据隔离;

(4)宇航设备可靠性要求高,系统要有故障处理能力。公司在接到此项任务后,进行了反复论证,提出三层栈(TLS)软件总体架构,如下图所示,并将软件设计工作交给了李工,要求他在三周内完成软件总体设计工作,给出总体设计方案。

在TLS软件架构的基础上,关于选择哪种类型的嵌入式操作系统问题,李工与总工程师发生了严重分歧。李工认为,宇航系统是实时系统,操作系统的处理时间越快越好,隔离意味着以时间作代价,没有必要,建议选择类似于VxWorks5.5的操作系统;总工程师认为,应用软件间隔离是宇航系统安全性要求,宇航系统在选择操作系统时必须考虑这一点,建议选择类似于Linux的操作系统。

请说明两种操作系统的主要差异,完成下表中的空白部分,并针对本任务要求,用200字以内的文字说明你选择操作系统的类型和理由。两种操作系统的主要差异如表3-1所示。

多项选择题