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20世纪60年代，英国制定了《旅游发展法》，规定对开办旅馆者给予20%的补助。以下是有关这一做法的表述，其中正确的是

①增加了就业渠道②促进了第三产业的发展

③有利于经济发展④体现了国家减少干预经济的思想

A．①②③

B．①③④

C．①②④

D．②③④

答案

答案：A

根据材料中的叙述，英国的规定有利于增加就业和促进旅游业的发展，推动地方经济的发展，国家对此行业的规定可以看出是加强了对经济的干预，所以④错误，①②③正确。

填空题

函数f（x）=2x-5的零点所在区间为[m，m+1]（m∈N），则m=______．
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填空题

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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