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患者，女性24岁，因左上智齿颊向高位阻生，要求拔除。

拔除该牙应麻醉的神经是同侧的（）。

A.上牙槽后神经+鼻腭神经

B.上牙槽中神经+腭前神经

C.上牙槽后神经+腭后神经

D.上牙槽后神经+腭前神经

E.上牙槽中神经+上牙槽后神经+腭前神经

答案

参考答案：D

单项选择题

At a basic level， cloud computing is simply a means of delivering IT resources as （）.Almost all IT resources can be delivered as a cloud service: applications， compute power， storage capacity， networking，programming tools，even communication services and collaboration （）。

Cloud computing began as large-scale Internet service providers such as Google，Amazon，and others built out their infrastructure. An architecture emerged: massively scaled， （） distributed system resources，abstracted as virtual IT services and managed as continuously configured， pooled resources. In this architecture， the data is mostly resident on （）“somewhere on the Intemet”and the application runs on both the "cloud servers”and the user’s browser.

Both clouds and grids are built to scale horizontally very efficiently. Both are built to withstand failures of （） elements or nodes. Both are charged on a per-use basis. But while grids typically process batch jobs， with a defined start and end point， cloud services can be continuous. What’s more， clouds expand the types ofresources available —— file storage， databases， and Web services —— and extend the applicability to Web and enterprise applications.

Almost all IT resources can be delivered as a cloud service: applications， compute power， storage capacity， networking，programming tools，even communication services and collaboration （）。

A．computers

B．disks

C．machine

D．tools
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单项选择题

（）年，武强被命名为“中国民间艺术之乡——木版年画之乡”。

A.1991

B.1992

C.1993

D.1994
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