题目内容
（请给出正确答案）
A.What's in
B.What's the thing
C.What's up
D.What's down
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更多“Martin: Can you cover for me o…”相关的问题
A．What's in
B．What's the thing
C．What's up
D．What's down
Most people who travel long distances complain of jetlag (喷气飞行时差反应). Jetlag makes business travelers less productive and more prone 【C1】______ making mistakes. It is 【C2】______ caused by disruption (破坏) 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 【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】______ 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 aeroplane, you can use a special light device to provide the necessary light stimulus for a 【C20】______ of activities such as reading, watching TV or working.
【C1】
A．for
B．from
C．to
D．of
A.What I can do for you
B.What can I do for you
C.Who can I do for you
D.How can I for you
A.That's very kind of you
B.I want coffee
C.With pleasure
D.You can please
A.Do you want to buy something
B.Excuse me, what are you doing
C.Are you just looking around
D.Is there anything I can do for you
A. Can you say for a second time？
B. Pardon？
C. I don't understand anythin
D. What you said was nonsens
E.
A.in, in
B.with, on
C.for, at
D.with, at
