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问题 单项选择题

破釜沉舟：项羽

A．望梅止渴：袁绍

B．陈桥兵变：赵括

C．焚书坑儒：羸政

D．背水一战：韩当

答案

参考答案：C

解析：赢政实施了焚书坑儒的政策，项羽采取了破釜沉舟的策略赢得了巨鹿之战。

填空题

若圆锥的底面积为9π，体积为12π，则该圆锥的侧面积为______．
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单项选择题

Serialization delay and (1) delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the (2) on the wire, and queuing delay (depth of the queue) are improved by increasing the (3) from a 128Kbps circuit to a T1. However, three other components of delay, routing/switching delay, distance delay, and protocol delay are components that can not be positively affected by an (4) in bandwidth. If the circuits are not over-utilized, then increasing the bandwidth to improve the (5) of the application will only result in an increased bandwidth with no positive effects on performance.

（5）是（）

A.capability

B.cost

C.amount

D.performance
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