选用电力电缆时，电缆的额定电压与电网的额定电压的关系是（）。 A.前者小于后者 B.

Usually, when your teacher asks a question, there is only one correct answer. But there is one question that has millions of current answers. That question is “What’s your name?” Everyone gives a different answer, but everyone is correct.

Have you ever wondered about people’s names? Where do they come from? What do they mean?

People’s first names, or given names, are chosen by their parents. Sometimes the name of a grandparent or other member of the family is used. Some parents choose the name of a well-known person. A boy could be named George Washington Smith; a girl could be named Helen Keller Jones.

Some people give their children names that mean good things. Clara means “bright”; Beatrice means “one who gives happiness”; Donald means “world ruler”; Leonard means “as brave as a lion”.

The earliest last names, or surnames, were taken from place names. A family with the name Brook or Brooks probably lived near brook(小溪)；someone who was called Longstreet probably lived on a long, paved road. The Greenwood family lived in or near a leafy forest.

Other early surnames came from people’s occupations. The most common occupational name is Smith, which means a person who makes things with iron or other metals. In the past, smiths were very important workers in every town and village. Some other occupational names are: Carter — a person who owned or drove a cart; Potter —a person who made pots and pans.

The ancestors of the Baker family probably baked bread for their neighbors in their native village. The Carpenter’s great-great-great-grandfather probably built houses and furniture.

Sometimes people were known for the color of their hair or skin, or their size, or their special abilities. When there were two men who were named John in the same village, the John with the gray hair probably became John Gray. Or the John was very tall could call himself John Tallman. John Fish was probably an excellent swimmer and John Lightfoot was probably a fast runner or a good dancer.

Some family names were made by adding something to the father’s name. English-speaking people added –s or –son. The Johnsons are descendants of John; the Roberts family’s ancestor was Robert. Irish and Scottish people added Mac or Mc or O. Perhaps all of the MacDonnells and the McDonnells and the O’Donnells are descendants of the same Donnell.

小题1:Which of the following aspects do the surnames in the passage NOT cover?

A．Places where people lived.

B．People’s characters.

C．Talents that people possessed.

D．People’s occupations.小题2:According to the passage, the ancestors of the Potter family most probably _______.

A．owned or drove a cart

B．made things with metals

C．made kitchen tools or contains

D．built houses and furniture小题3:Suppose and English couple whose ancestors lived near a leafy forest wanted their new-born son to become a world leader, the baby might be named _______.

A．Beatrice Smith

B．Leonard Carter

C．George Longstreet

D．Donald Greenwood小题4:The underlined word “descendants” in the last paragraph means a person’s _____.

A．later generations

B．friends and relatives

C．colleagues and partners

D．later sponsors

用于项目财务生存能力分析的指标是（）。

A.项目投资财务净现值

B.投资各方财务内部收益率

C.项目偿债备付率

D.项目净现金流量

视网膜母细胞瘤的MR表现是（）

A.T₁加权像呈高信号

B.T₁加权像呈中等信号或稍高信号

C.T₁加权像呈低信号

D.T₂加权像呈高信号

E.需行GD-DTPA增强

电能表可能出现哪些异常现象（）

A、计度器卡字不走

B、止逆装置失灵

C、轴承磨损

D、电能表回路故障

（）是指制造企业不拥有它们最大供应商的股权。

A．日本式的企业组织

B．美国式的企业组织

C．看板管理

D．Kaizen