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问题 单项选择题

关于建设工程监理的说法，错误的是()。

A.建设工程监理的行为主体是工程监理单位 

B.工程监理单位依据工程承包合同开展监理工作 

C.建设工程监理的实施需要建设单位的委托和授权 

D.工程监理单位是依法成立并从事建设工程监理活动的服务机构

答案

参考答案：B

解析：施工建设工程监理的主要依据有：法律法规及建设工程相关标准、建设工程勘察设计文件、建设工程监理合同及其他合同文件。

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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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将电气设备不带电的金属外壳或支架等与接地装置用导体作良好的电气连接叫（）
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