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【23】A．for whichB．with whichC．at whichD．to which
【23】
A．for which
B．with which
C．at which
D．to which
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【23】
A．for which
B．with which
C．at which
D．to which
如果结果不匹配，请 联系老师 获取答案
更多“【23】A．for whichB．with whichC．a…”相关的问题
A．For women 20～21 and for men 22～23.
B．For women 21 and for men 22.
C．For women 20～23 and for men 22～24.
D．For women 21～22 and for men 22～23.
Most people who travel long distances complain of jetlag (飞行时差综合症). Jetlag makes business travelers less productive and more prone 【21】______ making mistakes. It is actually caused by 【22】______ of your "body clock"--a small cluster of brain cells that controls the timing of biological 【23】______ The body clock is designed for a 【24】______ rhythm of daylight and darkness, so that it is thrown out of balance when it 【25】______ daylight and darkness at the "wrong" times in a new time zone. The 【26】______ of jetlag often persist for days 【27】______ the internal body clock slowly adjusts to the new time zone. Now a new anti-jetlag system is 【28】______ that is based on proven 【29】______ pioneering scientific research. Dr. Martin Moore-Ede has 【30】______ a practical strategy to adjust the body clock much sooner to the new time zone 【31】______ controlled exposure to bright light. The time zone shift is easy to accomplish and eliminates 【32】______ of the discomfort of jetlag. A successful time zone shift depends on knowing the exact times to either 【33】______ or avoid bright light. Exposure to light at the wrong time can actually make jetlag worse. The proper schedule 【34】______ light exposure depends a great deal on 【35】______ travel plans. Data on a specific flight itinerary (旅行路线) and the individual's sleep 【36】______ are used to produce a Trip Guide with 【37】______ on exactly when to be exposed to bright light. When the Trip Guide calls 【38】______ bright light you should spend time outdoors if possible. If it is dark outside, or the weather is bad, 【39】______ you are on an aero plane, you can use a special light device to provide the necessary light 【40】______ for a range of activities such as reading, watching TV or working.
【21】
A．for
B．from
C．to
D．of
听力原文：M: Welcome to my house!
W: Well, Mr. Robinson, I' m greatly surprised with all the work you've done on your house. (19)How long have you been working on it？
M: (19)I first became engaged in Do-it-yourself work several years ago. You see, my son Paul is disabled since childhood. (21)He's always in the wheelchair and(20)I just had to make some changes for him to the house.
W: Then, what sort of changes did you make？
M: First of all, some practical things to help Paul. Just imagine the problems a disabled person would have in your house. We need a large house with wide corridors so that Paul could move from one room to another as he like.
W: What else did you do？
M: By the time I'd altered everything for Paul, Do-it—yourself work had become a hobby of mine. I really enjoyed doing things with my own hands.
W: What are you working on now？
M: I've just finished the kitchen. (21)Now I'm building an extension so that Paul will have a large room on the ground floor where he can work.
W: I heard that you have got a prize of $10 000 in the Do-it-yourself Competition. How are you going to spend it？
M: (22)I'm hoping to start my oven business soon so that I can convert ordinary houses for disabled people. I think I've become an expert on the subject.
(23)
A．For several months.
B．For seven years.
C．For a year or two.
D．For several years.
A．For instance
B．As a result
C．In brief
D．On the whole
