In any event, you should choose a reputable manufacturer. Whatever product you use should emit only visible light, because ultraviolet light damages the eyes. If you are photosensitive , you may develop a rash. Otherwise, the main drawback is having to sit in front of the light for 30 to 60 minutes in the morning. Thats an inconvenience many winter depressives can live with.
为了提高广大考生的阅读理解能力,精选了以下全真模拟题。
26. What is the probable cause of Krentzs problem?
A) An unexpected gain in body weight.
B) Unexplained impairment of her nervous system.
C) Weakening of her eyesight with the setting in of winter.
D) Poor adjustment of her body clock to seasonal changes.
27. By saying that Linda Krentz saw the light , the author means that she ________.
A) learned how to lose weight
B) realized what her problem was
C) came to see the importance of light
D) became light-hearted and cheerful
28. What is the CURRENT view concerning the treatment of seasonal depression with bright lights?
A) Its effect remains to be seen.
B) It serves as a kind of placebo.
C) It proves to be an effective therapy.
D) It hardly produces any effects.
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