假设每一条指令都可以分解为取指、分析和执行三步。已知取指时间t取指=4△t,分析时间

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问题:

假设每一条指令都可以分解为取指、分析和执行三步。已知取指时间t取指=4△t,分析时间t分析=3△t,执行时间t执行=5△t。如果按串行方式执行完100条指令,需要 (1) At。如果按照流水线方式执行,执行完100条指令需要 (2) △t。

2()

A.504

B.507

C.508

D.510

考点:计算机软件水平考试中级数据库系统工程师数据库系统工程师
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我国有文字可考的历史开始于(   )

A.夏朝

B.商朝

C.春秋

D.战国

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地图集设计时,一般要确定页码和印张数量,一个标准印张折叠成标准8开本后相当于()个页码。

A、4

B、8

C、16

D、32

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被称为治下元虚冷、虚阳上浮诸证主要药的中药是

A.高良姜
B.吴茱萸
C.肉桂
D.干姜
E.附子

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Christmas is the anniversary of the birth of Christ, generally celebrated on December 25. It is one of the chief festivals of the Christian calendar and is (51) a social and family holiday. Christmas customs vary from (52) and among groups of different national (53) In most areas, however, homes and public places are (54) with evergreens, Christmas trees, (55) lights, and glittering ornaments. It is the busiest time of the year for merchants, and shops are filled (56) lavish displays and merchandise of all sorts. People send Christmas cards and buy gifts for their families and friends. Children look forward to (57) Santa Claus. They (58) their stockings on Christmas (59) and on Christmas morning they discover the gifts that have been left for them during the night. In the afternoon, families gather to (60) presents and to share the traditional Christmas dinner.

60().

A.transfer 

B.change 

C.transform 

D.exchange

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一些改进的消费者促销也可以用于产业促销,比如什么?

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