叹息样呼吸常见于
A.代谢性酸中毒 B.镇静剂中毒 C.脑出血D.神经官能症 E.心力衰竭
参考答案:D
关于假死错误的叙述是()。
A.假死多见于电击伤、淹溺等意外伤害
B.假死实质上为濒死期的特殊表现
C.有微弱的心跳,但无呼吸
D.有血液循环存在
E.假死的主要机制是脑功能严重抑制
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