Forest fires, farming and mining destroy the rainforests.___

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Forest fires, farming and mining destroy the rainforests.____
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第1题:

在运行表单时,下列有关表单事件的引发次序叙述中正确的是( )。

A.DESTROY→INIT→LOAD

B.DESTROY→LOAD→INIT

C.INIT→DESTROY→LOAD

D.LOAD→INIT→DESTROY


正确答案:D
解析:INIT事件在对象建立时引发。在表单对象的INIT事件引发之前,将先引发它所包含的控件对象的 INIT事件;LOAD事件在表单对象建立之前引发,即运行表单时,先引发表单的LOAD事件,再引发表单的INIT事件;DESTROY事件在对象释放时引发。

第2题:

analytical data mining(名词解释)


参考答案:分析性的数据挖掘

第3题:

当一个Applet被加载,后续对Applet生命周期方法的调用中,可能存在的次序是 ( )。

A.start(),stop(),destroy()

B.init(),start(),stop(),start(),stop(),destroy()

C.start(),init(),stop(),destroy()

D.init(),start(),destroy()


正确答案:B
解析:init()一般用来完成所有必需的初始化操作,start()是在初始化之后Applet被加载时调用,stop()在APplet停止执行时调用,destory()是Applet从系统中撤出时调用。

第4题:

在运行表单时,下列有关表单事件的引发次序叙述中正确的是( )。

A.DESTROY—INIT—LOAD

B.DESTROY—LOAD—INIT

C.DNT—DESTROY—LOAD

D.LOAD—INIT一DESTROY


正确答案:D
D。【解析】INIT事件在对象建立时引发。在表单对象的INIT事件引发之前,将先引发它所包含的控件对象的INIT事件;LOAD事件在表单对象建立之前引发,即运行表单时,先引发表单的LOAD事件,再引发表单的INIT事件;DESTROY事件在对象释放时引发。

第5题:

Data mining is an(66)research field in database and artificial intelligence. In this paper, the data mining techniques are introduced broadly including its producing background, its application and its classification. The principal techniques used in the data mining are surveyed also, which include rule induction, decision(67), artificial(68)network, genetic algorithm, fuzzy technique, rough set and visualization technique. Association rule mining, classification rule mining, outlier mining and clustering method are discussed in detail. The research achievements in association rule, the shortcomings of association rule measure standards and its(69), the evaluation methods of classification rules are presented. Existing outlier mining approaches are introduced which include outlier mining approach based on statistics, distance-based outlier mining approach, data detection method for deviation, rule-based outlier mining approach and multi-strategy method. Finally, the applications of data mining to science research, financial investment, market, insurance, manufacturing industry and communication network management are introduced. The application(70)of data mining are described.

A.intractable

B.emerging

C.easy

D.scabrous


正确答案:B

第6题:

The Smokey Bear(护林熊) fire prevention program has resulted in a savings of $20 billion on all federal(联邦的), state and private forested land(私有林地). In 1941, 208,000 forest fires burned 30 million acres, while in 1981, fewer than 165,000 fires burned about three million acres. While forest usage has increased, the proportion(比例) of human-caused fires has remained stable; people still cause nine out of ten forest fires. But the biggest cause of fires is arson(纵火), accounting for(引起) 34 percent of forest fires in 1981.

1. According to the passage, use of forested land has ____.

A、stabilized

B、been privatized

C、decreased

D、risen

2. According to the passage, in 1941 forest fires burned ____.

A、less acres than in 1981

B、3 million acres

C、ten times as many acres as in 1981

D、20 million acres more than in 1981

3. According to the passage, the number of human-caused fires ____.

A、has remained the same proportionately

B、has increased

C、is the same as the arson cases

D、accounts for 34 per cent of forest fires

4. According to the passage, which of the following statements is true?

A、Nine out of ten fires are caused by arsonists.

B、The Smokey Bear program has saved the nation a lot of money.

C、There are more forest fires now than before.

D、People do not use the forests as much as they did in the past.

5. It may be inferred from the passage that ____.

A、the majority of fires are caused by humans

B、arson is increasing every year

C、more acres are destroyed by fire each year

D、fewer people are using the forests


参考答案:1-5:DCABA


第7题:

在运行表单时,下列有关表单事件的引发次序叙述正确的是( )。

A.DESTROY→INIT→LOAD

B.DESTROY→LOAD→INIT

C.INIT→DESTROY→LOAD

D.LOAD→INIT→DESTROY


正确答案:D
解析:INIT事件在对象建立时引发。在表单对象的INIT事件引发之前,将先引发它所包含的控件对象的INIT事件;LOAD事件在表单对象建立之前引发,即运行表单时,先引发表单的LOAD事件,再引发表单的INIT事件;DESTROY事件在对象释放时引发。

第8题:

[A] New plants and animals then move into the area and begin to grow.

[B] Just 2 percent of the sunlight goes through the many layers of leaves and branches above, so understory plant species have developed special traits to cope with low light levels.

[C] On a smaller scale, large mammals, such as elephants, regularly destroy rain forest vegetation in the Congo River Basin in Africa.

[D] An understory of shorter trees and a lacework of woody vines, or lianas, produce a forest of such complex internal architecture that many animals, including some sizable ones, rarely or never descend to the ground.

[E] Less than one percent of the trees in the forest reside in the canopy and emergent layers.

[F] Because more light penetrates the canopy, however, the vegetation of the understory and forest floor is better developed than in the tropics.

[G] The rich, green canopy is teeming with life, and forest researchers have developed ingenious methods for accessing this mysterious ecosystem.


正确答案:B

 本题考查的知识点是:段落内一致性原则+上下文的衔接

本题空格出现在第一段中。上文提到热带雨林结构中的最低层是下层植被。下文提到,下层植被的植物叶子呈深红色,从而能够获取到达下层植被的少量的光。由此可见,上下文都围绕“下层植被”展开论述。出现关键词“understory”的选项有[B]、[D]和[F]。但是,[D]出现了上下文没有的新信息:“藤蔓植物”。[F]中出现了“冠层(canopy)”,但从下文即第一段倒数第二句对canopy一词的定义可知,它应在下文中第一次出现。由此排除[D]和[F]项。[B]强调下层植被适应低光强的特性,其中“低光强”与下文“获取少量的光”、“吸收不同波长的光”等内容相呼应。

第9题:

Java Applet的几个方法的执行顺序,正确的是( )。

A.init→start→destroy→stop

B.init→start→stop→destroy

C.start→init→destroy→stop

D.start→init→stop→destroy


正确答案:B
解析:该题考查对Java Applet生命周期的几个函数执行顺序的理解。Applet生命周期是指从Applet下载到浏览器,到用户退出浏览器,终止Applet运行的过程。Applet运行时,首先由浏览器调用init()方法,然后调用start()方法,使Applet成为激活状态,当Applet被覆盖时,调用stop()停止线程,最后关闭浏览器调用 deserog()。故本题答案是B。

第10题:

当-个Applet被加载,后续对Applet生命周期方法的调用中,可能存在的次序是( )。

A.start( ),stop( ),destroy( )

B.init( ),start( ),stop( ),start( ),stop( ),destroy( )

C.start( ),init( ),stop( ),destroy( )

D.init( ),start( ),destroy( )


正确答案:B
init()-般用来完成所有必需的初始化操作,start()是在初始化之后Applet被加载时调用,stop()在Applet停止执行时调用,destory()是Applet从系统中撤出时调用。

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