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《反不正当竞争法》中所说的商业秘密是指不为公众所知悉，能为权利人带来经济利益，具有实用性并经权利人( )

A.采用的生产技术 B.采用的科学成果

C.采用的经营方法 D.采取保密措施的技术信息和经营信息

总理衙门作为行政管理机构，从性质上讲具有( )

A．军事性

B．封闭性

C．买办性

D．近代性

E．现代性

世界和平与发展这两大问题，至今一个也没解决，是由于（ ）。

A．争霸与战争仍为当代主流

B．民族、宗教、领土等引起的战争时起时伏

C．人口增长失控，资源破坏，环境恶化

D．霸权主义和强权政治仍然存在

Passage Three

Questions 31 to 35 are based on the following passage.

①The long summer holidays are finally over and some parents are pleased. “We worry more about their safety in the holidays,” explains one mother from North London. If teenagers are not wandering around on public transport in a big and potentially dangerous city, they are chatting to strangers in an internet chat room! Well, that’s an extreme picture of the UK today, but many parents are worried about how much freedom they can give their children during the holidays and at weekends.

②Weekends are not the only time to worry! Newspaper are full of stories about too many school kids going to school by car because their parents do not want them to travel alone on a bus or train. This summer there were more frightening stories of teenagers disappearing with questionable friends that they met on the net. All the Media stories help increase parents fears, but is the UK really so dangerous?

③Many young people feel that life for their parents was easier. In the 1960s young people played in the streets more and traveled around town without their parents. “At least our parents can keep tabs on us（keep a tab/tabs on sth/sb>>keep account of , keep under observation）,” says 16-year-old Julia. “So many people have mobile phones now and their parents ring to find out where they are. I use my mobile to get Dad to come to the station when I arrive late.” Mobiles are not just expensive toys; they help keep young people safe. Most significantly, they make parents feel better. Only one problem is, though, that some young people have been attacked by thieves who want to steal their mobile phones.

④Young people like going out with friends, but they now need to learn how to get home safely. Five million young people in the UK between the ages of 9 to 16 use chat rooms to make friends, but they, too, need to be careful and never give their personal details to a stranger. Young people today have more opportunities to meet new people and go out at night more than their parents ever did. Now school, television programs and newspapers must help teenagers to enjoy their freedom and to be responsible for their own safety.

31. Some parents are upset about the summer holidays mainly because their children ______.

A. wander around on bus in the city

B. chat to strangers in Internet chat rooms

C. make questionable friends on the net

D. are taken little care of by teachers