填空题从下面提供的答案中选出应填入下列英文语句中 1内的正确答案。
In recent years, one of the more popular topics for panel discussions at computer conferences and trade (1) has been the "RISC versus CISC" debate.
RISC processors feature a small number of instructions that each executes in (2) 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 the (3) ofinstructions and registers and more to do with parallelism.
Since their conception, RISC processors have been evolving toward microparallelism. Incorporating parallel-processing features (4) 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 (5) the effectiveness of parallelism.
提供的答案：
(1) union (2) two (3) numbers (4) between (5) limit
(6) contents (7) shows (8) one (9) within (10) enhance

1、

【正确答案】 1、shows one numbers within limit

【答案解析】trade shows的意思是“贸易会议，贸易展览会”。
[参考译文]近些年来，RISC对CISC之争是计算机学术、贸易会议上最流行的专题讨论课题之一。
RISC处理器的特征是较小的指令集，每条指令在一个机器周期中执行。CISC使用复杂指令集，每条指令可能花费若干周期来执行。
我们不专门讨论RISC与CISC之争，市场决定它们的胜负。并且决定因素也许很少取决于指令和寄存器的数目，而更多地取决于并行性。
自从RISC概念提出后，RISC处理器正向着微并行性方向发展。它在处理器中融入了并行处理的特性。RISC处理器的特征为流水线，当一条指令在流水线上执行时，许多指令可以被解码。况且，RISC处理器正向着每个处理器单元有多条流水线方向发展。
CISC处理器也使用流水线。它们有许多一个周期执行时间的整数指令，但是CISC内部不同的执行时间的指令限制了并行效率。这里只能在(2)和(8)之间选择。根据题意，应该选(8)。 numbers ofinstructions and registers的意思是“指令和寄存器的数量”。 incorporate...within的意思是“把……合并到……”。根据题意，应该选(9)。根据句法结构，这里应该填一个动词，因此只能在(5)和(10)之间进行选择。limit的意思是“限制”，enhance的意思是“提高，增强”。根据句子的意思，选(5)。