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  3. Most people who travel long distances complain of jetlag (飞行时差反应) Jetlag ma

Most people who travel long distances complain of jetlag (飞行时差反应) Jetlag ma

游客2023-09-03  47
问题     Most people who travel long distances complain of jetlag (飞行时差反应) Jetlag  makes business travelers less productive and more prone【C1】______ making mistakes. It is actually caused by.【C2】______ of your "body clock" --a small cluster of brain cells that controls the timing of biological【C3】______ . The body clock is designed for a【C4】______ rhythm of daylight and darkness, so that it is thrown out of balance when it【C5】______ day light and darkness at the "wrong" times in a new time zone. The【C6】______  of jetlag often persist for days【C7】______ the internal body clock slowly adjusts to the new time zone.
    Now a new anti-jetlag system is【C8】______ that is based on proven【C9】______ pioneering scientific research. Dr. Martin Moore-Ede has【C10】______ a practical strategy to adjust the body clock much sooner to the new time zone【C11】______  controlled exposure to bright light. The time zone shift is easy to accomplish and eliminates【C12】______ of the discomfort of jetlag.
    A successful time zone shift depends on knowing the exact times to either【C13】______ or avoid bright light. Exposure to light at the wrong time can actually make jetlag worse. The proper schedule【C14】______ light exposure depends a great deal on【C15】______ travel plans.
    Data on a specific flight itinerary (旅行路线) and the individual’s sleep【C16】______ are used to produce a Trip Guide with【C17】______ on exactly when to be exposed to bright light.
    When the Trip Guide calls【C18】______ bright light you should spend time outdoors if possible. If it is dark outside, or the weather is bad,【C19】______ you are on an airplane, you can use a special light device to provide the necessary light【C20】______ for a range of activities such as reading, watching TV or working. [br] 【C7】
选项 A、while
B、whereas
C、if
D、although
答案 A
解析
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