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【单选题】
下列哪项不是全球能源资源利用存在的问题A.
世界化石能源分布不均衡
B.
国际能源问题政治化
C.
能源消耗量大
D.
气候变化影响能源发展
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【简答题】Some people criticize family doctors for ________ too many medicines for minor illnesses. A) prescribing B) ordering C) advising D) delivering
【简答题】读材料，回答下列问题。 材料一： 昆明准静止锋又称云贵准静止锋，位于云贵高原，锋面徘徊于昆明和贵阳之间，易形成连阴雨天气。 材料二：昆明准静止锋示意图（图1）；昆明准静止锋的位置图（图2） 材料三：昆明与贵阳冬半年和夏半年降水量、1月和7月平均气温的对比表 （1）依据材料，判断昆明准静止锋形成的季节并说明判断依据。 _________________________________________...
【简答题】A．It can be used to prolong everyone's life. B．It can help find cures for terminal illnesses. C．It can cure cancer and . D．It can help freeze people with terminal illnesses and bring them back to ...
【简答题】A.Unavailability of warm clothing. B.Bicycle maintenance. C.Increased illness. D.Increased commuting time.
【单选题】Which of the following would the critics of Olshansky and Allison dispute?
A.
That many illnesses are caused by obesity.
B.
That people in developed countries are getting fatter.
C.
The seriousness of obesity.
D.
That money can influence science.
【简答题】You failed to finish an important task assigned by your professor because of a severe illness. Write a letter to your professor to express your apology, explain your reason, and suggest a solution to ...
【单选题】某50肽中有丙氨酸(R基为—CH 3 )2个，现脱掉其中的丙氨酸(相应位置如下图)得到几种不同的有机产物，其中脱下的氨基酸均以游离态正常存在。下列有关该过程产生的全部有机物中有关原子、基团或肽键数目的叙述错误的是 [ ]
A.
肽键数目减少4个
B.
氢原子数目增加8个
C.
氨基和羧基分别增加4个
D.
氧原子数目增加2个
【简答题】下列氨基酸的脱羧产物分别是:(),() 。
【单选题】Which of the following is NOT mentioned as an effect of bad weather?
A.
Power failure.
B.
Illness among workers.
C.
Transportation problems.
D.
Production delays.
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