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【单选题】
有关资本效率的表示错误的是( )。A.
资本效率也即是投资效益
B.
一般用国内生产总值与资本总额的比率来表示
C.
资本的效率同经济增长之间呈负相关
D.
用生产单位国内生产总值需要投入的资本数量来表示资本效率
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【简答题】Plastic and traces of hazardous chemicals have been found in Antarctica, one of the world’s last great wildernesses, according to a new study. Researchers spent three months taking water and snow samp...
【单选题】To label their produce as organic, farmers have to obtain a certificate showing that no ________ chemicals have been used to kill pests on the farm for two years.
A.
toxic
B.
tragic
C.
nominal
D.
notorious
【简答题】This report ranks 50 appliance manufacturers selected according to their volume of sales.//The total turnover of the yzed companies is worth around EUR 587 billion, including EUR 125 billion of th...
【单选题】关于以下程序段,下面的说法正确的是() char result; scanf ("%c",&result); switch(result) { case 'A': case 'B': printf ("Good!\n"); break; case 'E': printf ("Bad!\n"); default: printf ("Error!\n"); }
A.
执行程序段后，输入a或者b，都将输出Good!
B.
执行程序段后，输入A或者B或者C，都将输出Good!
C.
执行程序段后，输入E，将输出Bad!，然后结束
D.
执行程序段后，输入C，将输出 Error!
【单选题】关于以下程序段,下面的说法正确的是________。
A.
执行程序段后，输入a或者b，都将输出Good!
B.
执行程序段后，输入A或者B或者C，都将输出Good!
C.
执行程序段后，输入E，将输出Bad!，然后结束
D.
执行程序段后，输入C，将输出 Error!
【简答题】have a family gathering
【单选题】The roots of plants()chemicals that have been absorbed and turn them into food for the plants.
A.
break out
B.
break into
C.
break down
【简答题】The roots of plants ( ) chemicals that have been absorbed and turn them into food for the plants.
【单选题】According to IEA 2019 report, a lthough ( ) ranks tenth in oil reserve, it is the highest oil producing country and the highest oil consuming country.
A.
Russia
B.
Saudi Arabia
C.
USA
D.
China
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