判断某时刻负荷的视在功率可观察()。 A.电压表 B.电流表 C.瓦特表 D.cos

题型:单项选择题

问题:

判断某时刻负荷的视在功率可观察()。

A.电压表

B.电流表

C.瓦特表

D.cosφ

考点:高压电工考试高压电工考试题库
题型:单项选择题

养老保险的提供可以保障社会安定,给其他社会生产及服务等创造和谐稳定的环境,同时养老保险基金的长期投资也对资本市场的具有促进作用,这表现了养老保险的()。

A.正外部效应

B.负外部效应

C.正选择

D.逆选择

题型:单项选择题

It seems that the Englishmen just cannot live without sports of some kind. A famous French humourist once said that this is because the English insist on behaving like children all their lives. Wherever you go in this country, you will see both children and grown-ups knocking a ball about with a stick or something, as if in Britain men shall always remain boys and women girls! Still, it can never be bad to get exercise, can it?

  Taking all amateur (业余) and professional sports in Britain into consideration, there can be no doubt that football is at the top of the list. It is called soccer in the United States. The game originated (起源于) in Britain and was played in the Middle Ages or even earlier, though as an organized game, or "association football", it dates only from the beginning of the 19th century.

  The next is rugby, which is called "football" in the United States. It is a kind of football played by two teams of fifteen players than eleven. In rugby, an oval-shaped ball is used which can be handled as well as kicked. It is a pretty rough game.

  In summer, cricket is the most popular sport. In fact, it has sometimes been called the English national game. Most foreigners find the game rather slow or even boring, but it enjoys great popularity among the British.

  Tennis rates high on the list, too. It was introduced into England from France in the 15th century, but it was from England that it spread to practically every country in the world  Table tennis, or "ping-pong", surely is not played on a great scale as it is in China or Japan. Basketball and volleyball were introduced into Britain during the late 19th century from America and are gaining popularity. Horse-back riding, swimming, rowing and golf all attract a lot of people.

41.The main purpose of Paragraph 1 is to tell us that the English ___________.

  A.are all sports lovers           B.behave like children

C.like to kick a ball around       D.can remain young all their lives

42.According to the passage, which of the following is NOT true about football and rugby?

  A.They differ in the shape of the ball.

  B.They are played by different numbers of players.

  C.They both can be handled.

  D.They both can be kicked.

43.The game that was never played in Britain until the late 19th century is _________.

  A.basketball    B.tennis    C.rugby   D.football

题型:单项选择题

新中国建立初期,新民主主义社会的经济成分,除了社会主义性质的国营经济外,还有()。

A.合作社经济

B.个体经济

C.私人资本主义经济

D.国家资本主义经济

题型:单项选择题

1871年3月18日,巴黎人民发动了起义,3月28日建立了巴黎公社。那么能为“巴黎公社”提供科学指导的文献是[ ]

A.《人民 * * 》

B.《国际歌》

C.《 * * 党宣言》

D.《英特纳雄耐尔》

题型:单项选择题

抢护渗水险情,应尽量避免在渗水范围内来往践踏,以免加大加深稀软(),造成施工困难和扩大险情。

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