Of the many factors that contribute to poor performance on standardized tests like the SAT, nerves and【C1】______, surprisingly,

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问题     Of the many factors that contribute to poor performance on standardized tests like the SAT, nerves and【C1】______, surprisingly, may not rank very high. In fact, according to a new paper published in Journal of Experimental Psychology, a little anxiety—not to mention fatigue—might actually be a very good thing.
    The study was conducted by psychology professors Phillip Ackerman and Ruth Kanfer. They【C2】______239 college freshmen, each of whom agreed to take three different versions of the SAT reasoning test given on three【C3】______Saturday mornings. The tests would take three-and-a-half hours, four-and-a-half hours and five-and-a-haif-hours, and would be administered in a【C4】______order to each of the students. To【C5】______the stress level in the students—who had already taken the SAT in the past and gotten into college—Ackerman and Kanfer offered a cash【C6】______to any volunteers who beat their high-school score.
    Before the test began on each of the three Saturdays, the students filled out a questionnaire that asked them about their fatigue level,【C7】______and confidence. They completed the questionnaire again at a break in the middle of the test and once more at the end. Together, all of these【C8】______a sort of fever chart of the students’ energy and anxiety throughout the experience.
    When the researchers scored the results, it came as no surprise that volunteers’ fatigue and stress rose【C9】______as the test got longer. What was【C10】______was their corresponding performance: as the length of the test increased, so did the students’ scores. The average score on the three-and-a-half hour test was 1,209 out of 1,600. On the four-and-a-half-hour version it was 1,222; on the five-and-a-half-hour test it was 1,237.
    A)provided B)random C)outrage D)bonus
    E)dramatically F)recruited G)terminated H)eliminate
    I)consecutive J)exhaustion K)deliberate L)unexpected
    M)boost N)steadily O)mood
【C4】

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答案B

解析 此处需填入修饰order的名词、形容词或分词。为了使研究具有普遍代表性,通常会随机测试,不特意设定顺序,random“任意的,随机的”符合语义。
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