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【单选题】Passage 5How much energy given off by the sun reaches the earth（） A．100 % but indirectly B．5 % C．50 % D．only a very tiny amount
A.
Passage 5
B.
The energy which the sun radiates goes in every direction, and only a minute part of it falls on the earth. Even so, it represents power of about 5,000,000 horsepower (马力)per square mile per day; the sun gives us as much energy every minute as mankind utilizes in a year. At present, we use this energy in directly, and it is our final source of power. Coal represents the chemical action of the sun on green plants thousands of years ago. Water power results from the rain formed by vapor which comes from the evaporation of power. Coal represents the rain formed by vapor which comes from the evaporation of water under the sunshine. Even windmills operate because of air currents set in motion by the different heating affects of the sun in different places. Some day, through chemistry or some type of solar engine, we shall harness this great source of energy more directly. Already a scientist has worked out an engine, surprisingly efficient, in with the sun’ s rays are concentrated through mirrors on a tube of water to create steam.【ID:2516579-题目:】In order to support this argument, the writer gives the example that （）
【单选题】甲向乙借款5000元，乙平时与甲关系甚好不便拒绝，便说现金不够，3天后再来取，3天以后，乙避而不见，下列表达中正确的有( )。
A.
甲乙之间的借贷合同已生效
B.
甲乙之间的借贷合同未生效
C.
甲乙之间的借贷已生效但乙违约
D.
甲乙之间的借贷合同已生效但发生履行不能
【单选题】It is absurd to go out in such terrible weather.()
A.
ridiculous
B.
funny
C.
odd
D.
interesting
【单选题】关于偏执型人格障碍特点，以下错误的是错误
A.
敏感多疑、好争辩，自尊心过强，人际关系往往反应过度
B.
经常无端怀疑别人要伤害、欺骗或利用自己
C.
自我评价低，自卑
D.
遇到挫折或失败时，推诿客观，将自己的失败归咎于他人
E.
易怀疑配偶和情侣的忠诚，常限制对方和异性的交往
【单选题】The computer system can help firefighters by giving medical information about ______ living in a burning building.
A.
dwellers
B.
residents
C.
clients
D.
invalids
