单选题
A treadmill (跑步机) desk may be one thing. But what about a desk with a built-in exercise bike? A new study, in the July 26 of Applied Ergonomics, found people working at a cycling workstation burned calories at 2.5 times the rate as when they simply sat and typed. Pedaling didn't affect typing performance. Using a cycling workstation for 10 minutes every hour throughout a day could help desk workers lose weight and reduce the 27 of diabetes and cardiovascular (心血管的) disease, researchers said. 28 pedaling could improve cognitive function, they said. University of Utah researchers 29 10 normal-weight undergraduates and faculty members who reported spending 6.3 hours a day, on average, at a desk. Subjects, men ages 24 to 40, spent two 10-minute sessions 30 the Gettysburg Address. In one session, subjects pedaled and typed. In the other, they sat and typed. 31 were instructed to select a resistance level they could comfortably maintain for 32 periods without interfering with typing. Subjects burned 255 calories per hour pedaling and typing and 100 calories per hour sitting and typing. The exertion level was rated as very, very light. Transcription time 33 7.7 minutes while pedaling and 7.6 minutes while sitting. Subjects made an average of 3.3 and 3.8 errors in the pedaling and non-pedaling experiments, 34 Heart rate and oxygen 35 were substantially higher while pedaling and typing. The study was small and involved young fit men. A researcher is part owner in a company that is working with the university to develop a cycling workstation called an Active Desk. A. averaged B. consumption C. evaporating D. Intermittent E. Irritating F. issue G. lure H. Participants I. prolonged J. recruited K. respectively L. risk M. Superiors N. tentatively O. transcribing
问答题
【正确答案】F
【答案解析】名词辨析题。分析句子结构和句意可知,Applied Ergonomics是某个期刊的名称,the July ______指的应当是该期刊7月份那一期,故结合备选项可知,issue“期,号”符合题意。
【答案解析】形容词辨析题。分析句子结构可知,空格所在句主谓宾齐全,因此空格处较有可能填入形容词修饰动名词pedaling。此处句意为:他们说,______骑自行车可以改善认知能力。根据空格前一句中的Using a cycling workstation for 10 minutes every hour throughout a day可知,空格处应填入一个表示频率的形容词,故结合备选项可知,Intermittent“断断续续的,间歇的”符合题意。