题目内容

They ______ for an early end to the fighting which had brought about a great loss to the city.

A. petitioned
B. reasoned
C. reckoned
D. rebuked

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In order to help the students get a better understanding of the new conception, the professor ______ it with many examples.

A. enchanted
B. dissipated
C. eliminated
D. illustrated

预测一个国家人口数量变化趋势的主要依据是( )

A. 现有人口的数量
B. 男女之间的性别比例
C. 现有人口的年龄组成
D. 生态因素的变化趋势

The professor gave ______ instructions for carrying out the research project.

A. explicit
B. formidable
C. afflictive
D. dominant

设有栈S和队列Q,其初始状态为空,元素a1、a2、a3、a4、a5、a6依次入栈,出栈的元素则进入队列Q,若6个元素出列的顺序是a2、a4、a3、a6、a5、a1,则栈的容量至少要有几个单元

A. 6
B. 4
C. 3
D. 2

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