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问题 解答题

园林工人对一块750平方米的草坪进行剪修，平均每小时剪修84平方米，已经剪修了4.5小时，剩下的要在5小时内剪修完，平均每小时要剪修多少平方米？

答案

（750-84×4.5）÷5

=（750-378）÷5，

=372÷5，

=74.4（平方米）；

答：平均每小时要修剪74.4平方米．

单项选择题 A1/A2型题

钉洞固位形不可设计在（）

A.后牙牙尖处

B.前牙舌面窝近舌隆突处

C.前牙舌面切嵴与近远中边缘嵴交界处

D.后牙牙尖间的沟窝处

E.死髓牙的胎面
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单项选择题

Virtualization is an approach to IT that pools and shares (71) so that utilization is optimized and supplies automatically meet demand. Traditional IT environments are often silos, where both technology and human (72) are aligned around an application or business function. With a virtualized (73) , people, processes, and technology are focused on meeting service levels, (74) is allocated dynamically, resources are optimized, and the entire infrastructure is simplified and flexible. We offer a broad spectrum of virtualization (75) that allows customers to choose the most appropriate path and optimization focus for their IT infrastructure resources.

（74）是（）

A.content

B.position

C.power

D.capacity
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