利用并行处理技术可以缩短计算机的处理时间,所谓并行性是指(1)。可以采用多种措施来提

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问题:

利用并行处理技术可以缩短计算机的处理时间,所谓并行性是指(1)。可以采用多种措施来提高计算机系统的并行性,它们可以分为3类,即(2)。提供专门用途的一类并行处理机(亦称阵列处理机)以(3)方式工作,它适用于(4)。多处理机是目前较高性能计算机的基本结构,它的并行任务的派生是(5)。

空白(4)处应选择()

A.事务处理

B.工业控制

C.矩阵运算

D.大量浮点计算

考点:中级数据库系统工程师计算机系统知识计算机系统知识题库
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戊戌变法和辛亥革命的共同点是  [ ]

A.都使民主共和的观念深入人心

B.都要求在中国发展资本主义

C.都主张推翻清王朝的封建统治

D.都颁布过资产阶级性质的宪法

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Today, we’ll talk about what other effects watching TV might produce on children. Children should be (1) a lot of television, many experts and parents agree, but there is at least one circumstance when it might be beneficial: (2) . A recent study conducted by Italian researchers found that children (3) immediately preceding and during blood tests experienced less pain than children whose mothers (4) during the procedure, or children whose mothers were present but (5) .
The research, led by Carlo Brown, MD, at the University of Siena, is published in the Archives of Disease in Childhood. (6) the study. None received any type of anesthesia; the children and their mothers (7) . Both the group whose mothers attempted to distract them from the blood tests and those whose mothers simply observed reported (8) than the group who watched cartoons. For that group, the levels of pain were less and the children were better able to (9) .
One of the possible explanations is that children might have (10) during the procedures, exacerbating their perception of pain. "The higher pain level reported by children during (11) shows the difficulty mothers have in interacting positively (12) in their children’s life," the authors write.
However, they stressed that (13) still provided benefits, noting that the children would (14) during the procedures. "Indeed, children state that having their parent present (15) when in pain," say the authors.
Another possibility offered for consideration is the notion that the (16) might release pain-quelling endorphins. Endorphins, (17) produced by the pituitary gland, resemble opiates in their ability to produce analgesia and a sense of well-being. In other words, they might (18) .
In any case, the study results suggest that health workers should (19) to watch television during painful procedures (20) .

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建筑设备监控系统中通讯网络采用的是()技术。

A.控制总线

B.现场总线

C.数据总线

D.并行通信

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发射线

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右图表示植物生长单位长度所需时间与生长素浓度的关系,下列叙述中,正确的()

A.在单侧光作用下,若胚芽鞘生长素浓度向光侧为a,则背光侧为b

B.将植物体水平放置,若根部近地侧生长素浓度为c,则远地侧为d

C.若曲线I表示生长素对植物茎的作用,则曲线II表示对根的作用

D.若曲线I表示生长素对双子叶杂草的作用,则曲线II表示对单子叶农作物的作用

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