What is meant by "take delight in"？
A. To arouse interest in.
B. To get much benefit from.
C. To receive great pleasure from.
D. To take advantage of.
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因子生态分析方法中主成分分析的主要目的是()。
A. 从众多的指标中寻找出影响生活空间分区的主要影响因素
B. 从众多的指标中寻找出影响生产空间分区的主要影响因素
C. 得到主因子和因子荷载量矩阵
D. 分析每一因子在城市中的得分情况
Which of the following is NOT true according to the passage？
A. The EEC spends one billion pounds on imported energy each year.
B. At the present level of research spending it is difficult to make any significant progress in the provision of energy from the Sun.
C. The desired breakthrough could be obtained by the end of the next decade if investment were increased.
D. The total yearly spending of the EEC on solar energy research amounted to almost 6 million
城市的地理要素不包括()。
A. 位置及距离
B. 结构
C. 时间
D. 经济
What makes it so hard for the face-recognition systems to work effectively？
A. The computers are not so advanced
B. The faceprints of the mugshots fed in the computers are never identical with those of real persons.
C. It is very hard for the operators to learn to control the system.
D. People seldom look straight at the camera.
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