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听力原文：People should get no more than 10 percent of their calories from sugar, experts say in a major new report on how to control the rising obesity-linked diseases around the world. (53)
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举一反三
【单选题】正确计算半径为5的圆面积的表达式为(), 先已执行了:import math
A.
math.3.14*5^2
B.
pi*5*5
C.
math.pi*5*5
D.
pi*5^2
【单选题】According to the last paragraph, with which of the following statements would the author of the text most probably agree?
A.
Almost-free internet phone calls herald the slow death of traditional telephony.
B.
Another data service was delivered entirely over the internet.
C.
The traditional telephone business have yet to turn a profit.
D.
The dramatic shift in the te[ecoms industry has received little attention.
【单选题】The author is primarily concerned with _____.
A.
describing how photographers' individual temperaments are reflected in their work.
B.
establishing new technical standards for contemporary photography.
C.
analyzing the influence of photographic ideals on picture-taking.
D.
explaining how the technical limitations affect photographers' work.
【简答题】确定曲线 的垂直渐近线为 ,斜渐近线为 。
【多选题】下列关于成本曲线的特征及相互关系的表述中，说法正确的是( )。
A.
总固定成本曲线在以产量为横坐标、成本为纵坐标的坐标平面中是一条垂直于横坐标的直线
B.
总可变成本曲线是一条由原点出发的向右上方倾斜的曲线
C.
总成本曲线是通过把每一产量水平上的总不变成本和总可变成本垂直相加而得到的
D.
平均固定成本与产量无关，因此它是一条向两轴逐渐靠近的双曲线
E.
平均可变成本曲线是U形，表现出随产量增加而先降后升的特征
【单选题】The Role of Religion in Korean Higher Education It is widely believed that religious traditions, such as Buddhism, Confucianism, Taoism and Christianity, had great effects on the entirety of Korean cu...
A.
Buddhism
B.
Confucianism
C.
Taoism
D.
Christianity
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