在优先级循环方式下,假设传输前8237芯片四个DMA通道的优先级次序为2-3-0-1

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问题:

在优先级循环方式下,假设传输前8237芯片四个DMA通道的优先级次序为2-3-0-1,那么在通道2进行了一次传输之后,这四个通道的优先级次序成为______。

考点:计算机等级考试PC技术三级PC技术笔试353
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阅读下面材料,在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式。

Some students who had graduated visited their university professor. The conversation soon turned into complaints about stress in work and life. To offer his guests coffee, the professor   小题1:  (go) to the kitchen and returned with a pot of coffee and   小题2:  variety of cups—porcelain, plastic, glass, some plain-looking, some expensive—telling them to help   小题3:  to the coffee.

 小题4:  was when all the students had a cup of coffee in hand that he said, “All the nice-looking expensive cups have been taken up,   小题5:  (leave) behind the plain and cheap ones. Actually, the cup itself adds no quality to the coffee.   小题6:  all of you really want is coffee, not the cup.You consciously went for the best cups,   小题7:  then you began eyeing others’ cups.”

“Now consider this Life is the coffee; the jobs, money and position in society are the cups,   小题8:    are just tools to hold and contain life. The type of cup we have does not change the quality of life . If we concentrate only   小题9:  the cups, we fail to enjoy the coffee. I   小题10:  (true) hope that you will never let the cups drive you ... enjoy the coffee instead.”

题型:填空题

外伤引起的头痛,其疼痛特点是()。

A.胀痛

B.绞痛

C.隐痛

D.刺痛

E.空痛

题型:填空题

属于增强疗效的配伍关系是()

A.相反、相须

B.相畏、相杀

C.相恶、相反

D.相杀、相反

E.相须、相使

题型:填空题

痛经的主要病机是

A.寒凝血瘀
B.气血运行不畅
C.湿热阻滞
D.阳虚内寒
E.血海空虚

题型:填空题

某银行某日买进即期美元500万元,卖出即期美元300万元,则该银行()。

A.即期美元多头500万

B.即期美元空头500万

C.即期美元多头200万

D.即期美元空头200万

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