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【简答题】
在Excel 2007工作表中，要计算区域A1:C5中值大于等于30的单元格个数，应使用公式( )。
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【单选题】What does the woman say about the plants in the Amazon rainforest?
A.
There are so many plants that it is hard to see the sky
B.
Many plants are sick because of the lack of sunlight
C.
The plants are more spectacular than she has ever dreamed
D.
The plants struggle hard to see the sun or the sky above
【简答题】压力管道按其结构布置形式分为 _______，_______;_______;地下压力管道几种类型。
【单选题】选中设计中心的图块,然后按住鼠标左键将其拖到绘图区,释放鼠标后,则()。
A.
该图块可按1:1插入
B.
可在命令行设置该图块的比例
C.
可将该图块的基点插入
D.
不能插入
【单选题】What does the woman say about the plants in the Amazon rainforest?
A.
There are so many plants that it's hard to see the sky
B.
Many plants are sick because of the lack of sunlight
C.
The plants are more spectacular than she has ever dreamed
D.
The plants struggle hard to see the sun or the sky above
【单选题】What does the woman say about the plans in the Amazon rainforest?
A.
There are so many plants that it is hard to see the sky.
B.
Many plants are sick because of the lack of sunlight.
C.
The plants are more spectacular than she has ever dreamed.
D.
The plants struggle hard to see the sun or the sky above.
【简答题】In the Amazon, many trees have been cut down to grow and raise .
【简答题】制动器的种类很多，按制动零件的结构特征可分为______、______和______制动器；而按其工作状态可分为______和______制动器。
【单选题】选中“设计中心”中的图块,然后按住鼠标左键将其拖到绘图区中,释放鼠标后,则( )。
A.
该图块可按1:1插入绘图区
B.
可在命令行中设置该图块的比例
C.
可将该图块的基点插入到所需位置
D.
不能将图块插入绘图区
【简答题】气体灭火系统按灭火方式和结构形式各分为几种类型?其含义是什么?
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