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问题 单项选择题

在保险合同存续期间，由于某种原因的发生而使保险合同的效力暂时失效属于（）。

A.保险合同变更

B.保险合同撤销

C.保险合同中止

D.保险合同终止

答案

参考答案：C

填空题

第三十届夏季奥运会于2012年 7月27日至8月12日在伦敦举行，赛期共______天，占七八月份总天数的______%．（除不尽的百分号前保留一位小数）
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单项选择题

Asynchronous Transfer Mode (ATM) is a (16) that promises to change the fabric of local and wide area communications.

The key advantage of ATM is the capability to move voice, data, graphics and (17) at speeds of up to 2 gigabits per second.

An ATM switch allows you to create a (18) network that is completely independent from the (19) configuration of the network.ATM uses a (20) called cell switching to convert data into fixed length cells of 53 bytes each, so they can be switched very quickly and efficiently.

（18）是（）

A. technology

B. video images

C. logical

D. physical
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