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假定建立了一个工程，该工程包括两个窗体，其名称(Name属性)分别为Form1和Form2，启动窗体为Form1。在Form1上画一个命令按钮Command1，程序运行后，要求当单击该命令按钮时，Form1窗体消失，显示窗体Form2，请将下面的程序补充完整。 Private Sub Command1_Click() 【14】 Form1 Form2. 【15】 End Sub

答案

参考答案：[14]Unload

解析：[15]Show或Show 1[评析] Unload语句、Show方法 Unload语句用来将指定窗体从内存中清除。 格式：Unload窗体名称 Show方法用来显示一个窗体。 格式：窗体名称.Show[模式] 参数“模式”用来确定显示窗体的状态，可以取值0或1。 取值为0(0值是缺省值)则窗体是“无模式’窗体，当该窗体显示出来时，不但可以对该窗体进行操作，还可以对其他显示出来的窗体进行操作；取值为1则窗体是“模式”窗体，当该窗体显示出来时，只能对该窗体进行操作，只有当该窗体关闭后，才能对其他窗体进行操作。

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（）是保证防火墙模板安装质量的一个关键环节，用50×100的方通在平地上铺出一个平台架，平台架要求顶面平整。然后将模板铺在平台架上，通过调整各件模板之间的相对位臵来得到一个最佳的组拼方案——拼缝严密、平整。
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阅读理解

Australia is the largest island in the world. It is a little smaller than China. It is in the south of the earth. Australia is big, but its population is small. The population of Australia is nearly as large as that of Shanghai.

Enough laws have been made to fight against pollution. The cities in Australia have got little air or water pollution. The sky is blue and the water is clean. You can clearly see fish swimming in the rivers. Plants grow very well.

Last month we visited Perth, the biggest city in Western Australia, and went to a wild flowers' exhibition (展览).There we saw a large number of wild flowers we had never seen before. We had a wonderful time. Perth is famous for its beautiful wild flowers. In spring every year Perth has the wild flowers' exhibition. After visiting Perth, we spent a day in the countryside. We sat down and had a rest near a path at the foot of a hill. It was quiet and we enjoyed ourselves.

Suddenly we heard bells ringing at the top of the hill. What we saw made us pick up all our things and run back to the car as quickly as we could. There were about three hundred sheep coming towards us down the path.

Australia is famous for its sheep and kangaroos. After a short drive from any town, you will find yourself in the middle of white sheep. Sheep, sheep, everywhere are sheep.

小题1:Australia is                       

A．the largest country in the world

B．larger than China

C．as large as Shanghai

D．not so large as China小题2:Enough laws have been made to__

A．increase the population

B．grow more plants

C．fight against pollution

D．show wild flowers小题3:Perth is_       

A．the capital of Australia

B．in the west of Australia

C．in the east of Australia

D．the biggest city in Australia小题4:In Perth you may visit a wild flowers' exhibition in        

A．October

B．January

C．May

D．July小题5:Which of the following sentences is TRUE?

A．All the big cities in Australia are seriously polluted.

B．Australia .is famous for its sheep, kangaroos and large population.

C．We ran back to the car because we were in the middle of the white sheep..

D．If you go to the countryside in Australia, you will see a large number of White sheep.
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