By saying that Linda Krentz saw the light”（Line 4，Para． 1），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

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1 What is the CURRENT view concerning the treatment of seasonal depression with bright lights？

A．Its effect remains to be see

B．It serves as a kind of placeb

C．It proves to be an effective therap

D．It hardly produces any effect

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2 What is psychologist Michael Terman’s major concern？

A．Winter depressives will be addicted to using light boxe

B．No mental patients would bother to consult psychiatrist

C．Inferior light boxes will emit harmful ultraviolet light

D．Light therapy could be misused by certain mental patient

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3 Which of the following statements is TRUE？

A．Winter depressives prefer light therapy in spite of its inconvenienc

B．Light therapy increases the patient’s photosensitivit

C．Eye damage is a side effect of light therap

D．Light boxes can be programmed to correspond to shifts in the body cloc

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