题目内容

在流水线结构的计算机中，频繁执行 (3) 指令时会严重影响机器的效率。当有中断请求发生时，采用不精确断点法，则将 (4) 。（4）处填（）。

A. 仅影响中断反应时间，不影响程序的正确执行
B. 不仅影响中断反应时间，还影响程序的正确执行
C. 不影响中断反应时间，但影响程序的正确执行
D. 不影响中断反应时间，也不影响程序的正确执行

查看答案

搜索结果不匹配？点我反馈

更多问题

广义笛卡尔积属于关系运算符中的 (26) 。两个元数分别为n目和m目的广义笛卡尔积是一个 (27) 列的元组集合，其形式定义如下： (28) ＝ (29) 。（26）处填（）。

A. 集合运算符
B. 专门运算符
C. 比较运算符
D. 逻辑运算符

广义笛卡尔积属于关系运算符中的 (26) 。两个元数分别为n目和m目的广义笛卡尔积是一个 (27) 列的元组集合，其形式定义如下： (28) ＝ (29) 。（29）处填（）。

A. (t|tn+m∧tn∈R∧tm∈S}
B. ＜t|t≤tn，tm＞∧tn∈R∧tm∈S}
C. ＜t|t≤tn，tm＞∧tn∈R∧tm∈S∧tn[i]θtm[j]}
D. ＜t|t≤tn2，tm2＞∧tn∈R∧tm∈S∧tn2-m2∈R-S

软件设计中划分模块的一个准则是 (17) 。两个模块之间的耦合方式中， (18) 的耦合度最高；一个模块内部的内聚种类中， (19) 内聚的内聚度最高。（17）处填（）。

A. 低内聚低耦合
B. 低内聚高耦合
C. 高内聚低耦合
D. 高内聚高耦合

Driving through snowstorm on icy roads for long distances is a most nerve-racking experience. It is a paradox that the snow, coming (1) gently, blowing gleefully in a high wind, all the while (2) down a treacherous carpet, freezes the windows, (3) the view. The might of automated man is (4) . The horses, the powerful electrical systems, the deep-tread tires, all go (5) nothing. One minute the road feels (6) ,and the next the driver is sliding over it, light as a (7) ,in a panic, wondering what the heavy trailer trucks coming up (8) the rear are going to do. The trucks are like (9) when you have to pass them, not at sixty or seventy (10) you do when the road is dry, but at twenty-five and thirty. (11) their engines sound unnaturally loud. Snow, slush and (12) of ice spray from beneath the wheels, obscure the windshield, and rattle (13) your car. Beneath the wheels there is plenty of (14) for you to slide and get mashed to a pulp. Inch (15) inch you move up, past the rear wheels, the center wheels, the cab, the front wheels, all (16) too slowly by. Straight ahead you continue, (17) to cut over sharply would send you into a slip, (18) in front of the vehicle. At last, there is (19) enough, and you creep back over, in front of the truck now, but (20) the sound of its engine still thundering in your ears. 4（）

A. muted
B. discovered
C. doubled
D. undervalued