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问题 选择题

克里斯提尼于公元前509年联合平民推翻贵族统治，并当选为首席执政官。他在位时期（    ）
A．废除了债务奴隶制B．实行差额选举公职

C．确立“陶片放逐法”D．给予公职人员津贴

答案

C

解答本题要明确梭伦改革、克里斯提尼改革与伯利克里改革的具体内容并加以区别；AB属于梭伦改革的内容，D属于伯利克里改革的措施。

填空题

观察方程（x-1）（x+2）=0的解是______．
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单项选择题

In recent years, one of the more popular topics for panel discussions at computer conferences and trade (61) has been the "RISC versus CISC" debate.
RISC processors feature a small number of instructions that each executes in (62) machine cycle. CISC processors use complex instructions that can take several cycles to execute.
The RISC versus CISC debate won’t be decided by panel discussion; it will be won in the marketplace. And the deciding factor may have little to do with (63) of instructions and registers and more to do with parallelism.
Since their conception, RISC processors have been evolving toward micro parallelism, incorporating parallel-processing features (64) the processor, RISC processors feature pipelining, whereby many instructions can be decoded while one instruction executes. RISC processors, however, are moving toward pipelines for each unit of the processor.
CISC processors also employ pipelining. They have many integer instructions that execute in one cycle, but the varying execution times of CISC instructions (65) the effectiveness of parallelism.

A．union

B．two

C．numbers

D．between

E．limit

F．contents

G．shows

H．one

I．within

J．enhance
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