搜题请搜索小程序“爱下问搜题”
问题 单项选择题

男患，41岁，近半年来反复发生左上肢抽动，每次约半分钟自行缓解。最可能的诊断是：（）

A.单纯部分性发作

B.肌阵挛发作

C.自动症

D.小舞蹈病

E.低钙性手足搐搦

答案

参考答案：A

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.

（64）处是（）

A.union

B.twoC.numbers

D.between

E.limit

F.contents

G.shows

H.one

I.within

J.enhance
查看答案
材料分析题

长江下游某城市边缘分布着丘陵，丘陵的基岩上有黄土覆盖（如图所示）。近年来，由于地域扩展，大量开挖山坡，该地在夏季暴雨后蹭发生多起黄土崩塌、滑坡灾害。

阅读图文资料，简要分析该地黄土崩塌、滑坡多发的原因。

___________________________________________________________________________________________
查看答案