围绕城市中心对其周围地区进行栅格网划分,再对各栅格网的功能进行定义,然后确定各栅格与城市中心的关系,进行相关集聚与扩散分析的研究方法是()。
A. 方格法
B. 栅格法
C. 密度法
D. 极点法
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What was his first reflection when he stood at the corner？
A. There was a terrible accident in which an airliner struck the first building.
B. A terrorist attack against America had begun.
C. People were floating down from the top of the building as if they wanted to break a world record.
D. He was just at a loss and could not make out what had happened.
衡量中心地等级的指标称()。
A. 中心度
B. 集约度
C. 开放度
D. 分散度
The phrase "be brought forward" (Line 2, Para. 1) most probably means______.
A. be expected
B. be completed
C. be advanced
D. be introduced
In the last paragraph, the author points out that_______.
A. any way, the face-recognition technology is good enough to frighten the terrorists
B. the industry will have to recognize the real situation and work hard to improve the technology
C. all the claims are premature
D. we must not expect too much
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