In the last paragraph, the author's attitude is that________.
A. different people have different ideas
B. however difficult the situation is, people should unite and move forward
C. people should go back to work immediately
D. people shouldn't walk with expressionless faces
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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.
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
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