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问题 单项选择题

我国土地利用总体规划纲要提出，优化配置城镇工矿用地的措施是( )。

A．严格控制新增建设用地规模

B．优化工矿用地结构和布局

C．积极扩展建设用地新空间

D．保障能源产业用地

答案

参考答案：B

单项选择题

Rumored declines in automobile-industry revenues are exaggerated. It is true that automobile manufacturers’ share of the industry’s revenues fell from 65 percent two years ago to 50 percent today, but over the same period suppliers of automobile parts had their share increase from 15 percent to 20 percent and service companies (for example, distributors, dealers, and repairers) had their share increase from 20 percent to 30 percent.
Which one of the following best indicates why the statistics given above provide by themselves no evidence for the conclusion they are intended to support ？（）

A．The possibility is left open that the statistics for manufacturer’s share of revenues come from a different source than the other statistics.

B．No matter what changes the automobile industry’s overall revenues undergo, the total of all shares of these revenues must be 100 percent.

C．No explanation is given for why the revenue shares of different sectors of the industry changed.

D．Manufacturers and parts companies depend for their revenue on dealers’ success in selling cars.

E．Revenues are an important factor but are not the only factor in determining profits.
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单项选择题

是下列哪个管件的图例（）。

A．弯头

B．斜三通

C．正四通

D．斜四通
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