全国的核事故应急管理工作由（）负责。 A.国务院 B.国务院指定的部门 C.环境保护

标出下列词语中的错别字，并将正确的字按顺序写在后面的横线上。

家渝户晓　趋之若婺　五体头地　挺而走险

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在使用电平刨(平面刨)时，必须装设灵敏可靠的( )装置。

A．护手

B．气动

C．搬把

D．联动

Whether you’re eating at a fancy restaurant or dining in someone’s home. Proper table manners are likely to help you make a good impression. According to a US expert, Emily Post, “All rules of table manners are made to avoid ugliness.”

While Henry Hitchings of the Los Angeles Times admits that good manners can reduce social conflict, he points out that mostly their purpose is protective - they turn our natural warrior-like selves into more elegant ones.

So where did table manners come from?

In medieval England, a writer named Petrus Alfonsi took the lead to urge people not to speak with their mouths full. And King David I of Scotland also proposed that any of his people who learned to eat more neatly be given a tax deduction (减除).

Disappointingly, that idea never caught on. It was during the Renaissance, when there were real technical developments, opinions of correct behavior changed for good. “None of these was more significant than the introduction of the table fork,” wrote Hitchings. “Gradually, as forks became popular, they brought the new way of eating, making it possible, for instance, to consume berries without making one’s fingers dirty.”

Forks were introduced to Britain in 1608 and 25 years later, the first table fork reached America. Yet while most of the essentials (基本要素) are the same on both sides of the Atlantic, there are a few clear differences between what’s normal in the US and what holds true in the UK. For example, in the US, when food needs cutting with a knife, people generally cut a bite, then lay aside the knife and switch the fork to their right hand. Then they pick up one bite at a time. By contrast, Britons keep the fork in the left hand and don’t lay the knife down.

Though globalization has developed a new, simpler international standard of table manners, some people still stick with the American cut-and-switch method.The Los Angeles Times noted, “They are hanging on to a form of behavior that favors manners above efficiency.”

小题1:What does the story mainly talk about?

A．The importance of proper table manners .

B．The development of table manners in Western countries.

C．Some unwritten rules of table manners in the US and UK.

D．Differences between American and British table manners.小题2:The underlined phrase “caught on” in the passage probably means ______.

A．worked in practice

B．became popular

C．drew attention

D．had a positive effect小题3:Which of the following events influenced people’s table manners most according to the article?

A．The introduction of forks.

B．The tax deduction policy.

C．The rise of the Renaissance.

D．Petrus Alfonsi’s efforts in promoting table manners.小题4:What can we conclude from the article?

A．British and American table manners are completely different from each other.

B．American people pay more attention to their table manners than British people do.

C．With globalization, the American cut-and-switch method has been abandoned in the US.

D．British people’s way of using a knife and fork may be more efficient than American people’s.

日本脱口秀表演家金语楼曾获多项专利。有一种在打火机上装一个小抽屉代替烟灰缸的创意，在某次创意比赛中获得了大奖，备受推崇。比赛结束后，东京的一家打火机制造厂家将此创意进一步开发成产品推向市场，结果销路并不理想。
以下哪项如果为真，能最好地解释上面的矛盾

A．某家烟灰缸制造厂商在同期推出了一种新型的烟灰缸，吸引了很多消费者
B．这种新型打火机的价格比普通的打火机贵20日元，有的消费者觉得并不值得
C．许多抽烟的人觉得随地弹烟灰既不雅观，也不卫生，还容易烫坏衣服
D．参加创意比赛后，很多厂家都选择了这项创意来开发生产，几乎同时推向市场

（）是沿着对称轴线剖切后绘出视图。

A、半剖面图

B、全剖面图