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问题 选择题

下列对一些事实的解释错误的是 [ ]

A．书写档案规定必须使用碳素墨水--碳的化学性质稳定

B．石墨能够做电池的电极材料--石墨能够导电

C．焦炭可以把铁从它的氧化物矿石里还原出来--焦炭具有氧化性

D．制糖工业中用活性炭来脱色以制白糖--活性炭具有吸附性

答案

答案：C

单项选择题

The fact that most Americans live in urban areas does not mean that they reside in the center of large cities. In fact, more Americans live in the suburbs of large metropolitan areas than in the cities themselves.
The Bureau of the Census regards any area with more than 2,500 people as an urban area, and does not consider boundaries of cities and suburbs.
According to the Bureau, the political boundaries are less significant than the social and economic relationships and the transportation and communication systems that integrate a locale. The term used by the Bureau for an integrated metropolis is an MSA, which stands for Metropolitan Statistical Area. In general, an MSA is any area that contains a city and its surrounding suburbs and has a total population of 50,000 or more.
At the present time, the Bureau reports more than 280 MSAs, which together account for 75 percent of the U.S. population. In addition, the Bureau recognizes 18 megapolises, that is, continuous adjacent metropolitan areas. One of the most obvious megapolises includes a chain of hundreds of cities and suburbs across 10 states on the East Coast from Massachusetts to Virginia, including Boston, New York, and Washington D. C. In the Eastern Corridor, as it is called, a population of 45 million inhabitants is concentrated. Another megapolis that is growing rapidly is the California coast from San Francisco through Los Angeles to San Diego.

Why does the author mention the Eastern Corridor and the California coast in Paragraph 4

A．As examples of megapolises.

B．Because 75 percent of the population lives there.

C．To conclude the passage.

D．The Bureau of the Census is located ther
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单项选择题

住宅底商准入政策中，对总、分行级优质房地产客户开发的或我行商品房开发贷款支持的楼盘，住宅底商可由一级支行负责准入审批。对其他楼盘，住房按揭楼盘由一级支行负责准入审批的，住宅底商由（）负责准入审批。

A.一级支行

B.二级分行

C.一级分行

D.总行
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