题目内容

原生群落受破坏的强度愈大,破坏持续的时间愈长,则恢复到原生群落的速度愈慢,过程愈长。

A. 对
B. 错

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森林群落的退化属于逆行演替。

A. 对
B. 错

流程图中的圆角矩形代表什么意思?( )

A. 代表要执行的处理动作,用作执行框
B. 代表流程的开始或者结束,用作起始框或结束框
C. 代表决策或者判断,用作判别框
D. 代表系统的数据库

流程图种的矩形,代表要执行的_____________,用作执行框

Match the elements listed below with the following paragraphs of a memo.1.To change the situation, the Catering Section has been ordered for rectification. The company will check the change before 20 March. To stimulate competition, Staff Canteen B will be soon put in use by the end of July. Regular supervision over canteen management will be implemented.

A. Introduction
B. Summary
C. Discussion
D. Actions

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