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【简答题】
已知某商品需求曲线为D=100-2P,供给曲线为S=50+3P,请计算其均衡价格和均衡数量。
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举一反三
【单选题】In 1938 Pearl S. Buck became the first American woman ______ the Nobel Prize for Literature.
A.
receiving
B.
received
C.
who receives
D.
to receive
【单选题】According to the passage, Pearl Buck was an unusual figure in American literature in that she______.
A.
wrote extensively about a very different culture
B.
published half of her hooks abroad
C.
won more awards than any other woman of her time
D.
achieved her first success very late in life
【多选题】在酶的液态发酵生产中,培养液中溶解氧的量,取决于一定条件下氧气的溶解速度。提高溶氧速率的措施是( )。
A.
增大通气量
B.
提高温度
C.
减少气液接触面积
D.
提高液体黏度
E.
增加气液接触时间
【简答题】均匀场可能处处与曲面垂直,是否?(__)
【单选题】According to the passage, Pearl Buck is known as a writer of all the following EXCEPT______.
A.
novels
B.
children's books
C.
poetry
D.
short stories
【单选题】阅读材料，回答题。 Extensive new studies suggest that the world has made extraordinary progress in reducing poverty in recent decades. The research suggests that the pace of economic progress has been rapid an...
A.
decreased
B.
climbed
C.
increased
D.
dropped into water
【单选题】The author's attitude toward Pearl Buck could best be described as______.
A.
indifferent
B.
admiring
C.
sympathetic
D.
tolerant
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