Over the years, pregnant women have asked Donald Redelmeier, at Toronto’s Sunnybrook Hospital , about the dangers of diving, hot

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问题     Over the years, pregnant women have asked Donald Redelmeier, at Toronto’s Sunnybrook Hospital , about the dangers of diving, hot tubs, flying, mountaineering, cycling, bear attacks and all sorts of other exotic risks.【C1】______they never【C2】______road accidents. His new study, published in the Canadian Medical Association Journal,【C3】______they should.
    Dr. Redelmeier and his colleagues wanted to know if【C4】______makes a woman driver more likely to be【C5】______in a car crash. So they【C6】______data from the Ontario Health Insurance Plan, which records health visits for the Canadian province’s 13m residents. The researchers【C7】______women who, in the months before giving birth,【C8】______a hospital emergency unit after a car accident in which they had been driving. They【C9】______looked at those women’s hospital visits in the three years before becoming pregnant and for one year【C10】______the birth.
    They found that being pregnant made the women 42% more likely to be in a serious car crash. The【C11】______peaked in the fourth month of pregnancy. It seems that being pregnant is about as【C12】______for drivers as having sleep apnoea, which【C13】______people to snore and choke themselves a-wake throughout the night, leaving them【C14】______during the day.
    Women’s driving seemed to be affected【C15】______how rich or poor or old they were, whether their pregnancy was【C16】______or straightforward, or whether they already had children. To【C17】______the possibility that pregnant women simply had an increased【C18】______to seek care—or,【C19】______layman’s terms, were neurotic—they looked at whether they were more likely to go to hospital when involved in crashes that they did not cause,【C20】______they were passengers or pedestrians. The answer was "no" .
【C13】

选项 A、leads
B、causes
C、triggers
D、induces

答案B

解析 该空进一步解释上文提到的sleep apnoea,而四个选项的意思极其接近:[A]leads“引导”;[B]causes“导致”;[C]triggers“引发”;[D]induces“引起,引诱”。lead如果要理解成“导致”,一般是lead to;而lead sb.to的意思为“引导某人,带领某人”,故[A]可以排除。而trigger一般搭配某物,不搭配某人,故可以排除。而induce sb.的意思为“引诱某人”,故该题答案为[B]causes。
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