Timothy Stow of Inver Grove Heights, Minn. worked hard, exercised often and thought he got plenty of sleep. Yet he never felt re

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问题     Timothy Stow of Inver Grove Heights, Minn. worked hard, exercised often and thought he got plenty of sleep. Yet he never felt rested. The 20-year-old salesman dozed off during meetings and had four car accidents after falling asleep at the wheel. (46) (47) Electrodes affixed from head to toe kept track of all activity in his brain, heart, eyes, faces, arms and legs. (48) When he slept, the soft tissue at the back of his throat, near the base of his tongue, collapsed against itself, blocking air intake. Each time his breath was cut off—about 100 times an hour—his brain would alert him to awaken and breathe. He never woke to full consciousness, but neither did he fall into a deep, restful sleep. Sleep apnea afflicts millions of Americans, typically middle-aged, overweight men. The problem begins gradually with loud and prolonged snoring. (49) In severe cases, the victim spends most of his sleep time not breathing. Doctors at the center gave Stow a Continuous Positive Airway Pressure (CPAP) device. (50)
A. Now when he retires, he straps over his nose a soft rubber mask connected to a small unit that supplies just enough air pressure to hold his airway open so he can breathe continuously.
B. Finally his doctor sent him to the Minnesota Regional Sleep Disorders Center in Minneapolis.
C. Later, at the end of each run of snores comes a brief breath-holding spell.
D. Doctors soon realized that Stow was a victim of sleep apnea.
E. Many people have chronic sleep problems.
F. Placed in a quiet room, Stow went to sleep at his usual time.

选项

答案B

解析 选项B所在段落的大意为“来自于明尼苏达州Inver Grove Heights市的狄莫西·斯陀工作勤奋,经常锻炼身体,原认为睡眠充足。然而,实际上他从未感到休息好了。这位20岁的推销员开会打盹,开车睡觉,出了4次车祸。最后,他被送到明尼亚波利斯市的明尼苏达地区睡眠中心。”
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