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【简答题】
假设某经济社会的消费函数为C=100+0.8Y，投资为50（单位：10亿元）若消费函数变为c=100+0.9Y，投资仍为50，收入和储蓄各为多少？投资增至100时收入增加多少？
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【单选题】Suppose roses are currently selling for $30 per dozen, but the equilibrium price of roses is $20 per dozen. We would expect a
A.
shortage to exist and the market price of roses to increase.
B.
shortage to exist and the market price of roses to decrease.
C.
surplus to exist and the market price of roses to increase.
D.
surplus to exist and the market price of roses to decrease.
【简答题】选择断路器要考虑那些问题?
【简答题】In the following sentences, the underlined word "impose" has similar meaning except for __________. (1.0分)A. The law should impose fine on companies
that use energy wastefully. B. Parents should not i...
【单选题】影响择业的因素有哪些？(1)人生观和价值观；(2)受教育程度；(3)个性特征；(4)家庭因素；(5)学校因素
A.
（1）（2）（3）
B.
（1）（2）（4）
C.
（2）（3）（4）（5）
D.
（1）（2）（3）（4）（5）
【单选题】The Wars of the Roses were a series of dynastic wars for ().
A.
the throne of England
B.
red roses
C.
white roses
D.
pink roses
【单选题】Suppose roses are currently selling for $40.00 per dozen. The equilibrium price of roses is $30.00 per dozen. We would expect a
A.
shortage to exist and the market price of roses to increase.
B.
shortage to exist and the market price of roses to decrease.
C.
surplus to exist and the market price of roses to increase.
D.
surplus to exist and the market price of roses to decrease.
【简答题】试述开关电容滤波电路的原理和特点。
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