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【单选题】
关于色彩的前后和膨胀感觉描述不正确的是A.
一般而亮的色彩有前进或膨胀的感觉
B.
低而黑暗的色彩有前进或膨胀的感觉
C.
长波长的色相,如红、橙、黄给人以前进、膨胀的感觉
D.
高纯度的鲜艳色彩有前进与膨胀的感觉
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【简答题】1 两消费者的效用函数分别为U1=X1.5Y,U2=X6Y4+1.5lnX+lnY,两人的预算约束同为3X+4Y=100。求: (1)他们各自的最优商品购买量; (2)两人的最优商品购买量是否相同?这与两条无差异曲线不能相交矛盾吗? 2 某人的效用函数U=50x-0.5x2+100y-y2,Px的价格为4元,他的收入为672元。求: (1)Y的需求函数 (2)Py=14元时,他将消费多少X (3)...
【单选题】What can we learn about the fundamental question listed in the end of the first paragraph?
A.
America will be separated into two countries.
B.
English will give its place to other languages.
C.
It concerns America's national and cultural identity.
D.
It's not very serious because of America's powerful influence.
【单选题】Hydrogen is the fundamental element of the universe ______ it provides the building blocks from which the other elements are produced.
A.
so that
B.
but that
C.
in that
D.
provided that
【单选题】According to the text, the fundamental cause of the ice ages is.
A.
periodic changes in the earth's orbit around the sun
B.
fossil remains of one-celled animals
C.
alternating cold and warm seasons
D.
changes in distance of the earth from the sun
【单选题】根据下图集装箱的外部特征,对其类型及用途判定正确的是( )。
A.
通风集装箱,适合于装载不需冷藏而具有呼吸作用的水果、蔬菜、兽皮等货物
B.
隔热集装箱,适合于装载水果、蔬菜等货物,防止温度上升过大
C.
罐式集装箱,适合于装载酒类、油类、化学品等液体货
D.
冷藏集装箱,适合于装载冷冻货或低温货
【简答题】The fundamental reform. should promote corporations to answer for their workers and the environment.
【多选题】What was the fundamental shift that Apple's iPad marked in the computer industry? (More than one answer)
A.
Software companies did not control the market any longer.
B.
The power had shifted back to the manufacturers.
C.
Apple's iPad made computer available for everyone.
D.
It made learning enjoyable.
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