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【单选题】
假如买者可以按不变的价格购买任何数量的某种商品,这意味着这种商品供给的价格弹性等于(    )
A.
零。  
B.
无穷。  
C.
1。
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举一反三
【单选题】The author mentions all of the following as important in determining the pipeline's route EXCEPT the ______.
A.
climate
B.
lay of the land itself
C.
local vegetation
D.
kind of soil and rock
【单选题】The author mentions all the following factors that may affect a soccer player's success EXCEPT( )
A.
his family background
B.
his neighborhood
C.
his practice
D.
his height
【单选题】The author's description of external time cues mentions all of the following EXCEPT _____.
A.
light
B.
temperature
C.
humidity
D.
sand
【单选题】有关活动式取水低坝相对于固定式取水低坝的优点,下述哪项不是( )
A.
操作灵活、维护管理复杂
B.
减少洪水期坝上游的淹没面积
C.
便于减少坝前淤积
D.
适用种类较多
【单选题】The author's description of erosion impact mentions all of the following EXCEPT ______.
A.
sunlight
B.
wind
C.
solid water
D.
liquid water
【单选题】大量出汗时尿量减少的主要原因是
A.
血容量减少,导致肾小球滤过减少
B.
血浆晶体渗透压升高,引起抗利尿激素分泌增加
C.
交感神经兴奋,引起抗利尿激素分泌增加
D.
动脉血压降低,引起血管升压素分泌增加
【单选题】患者干咳,连声作呛,咽喉干痛,唇鼻干燥,痰少而黏,口干,伴身热恶寒,舌质红干而少津,苔薄黄,脉浮数。其证候是
A.
风热犯肺
B.
燥邪犯肺
C.
痰热郁肺
D.
肝火犯肺
E.
肺阴亏耗
【判断题】城市轮渡包括横江轮渡、斜江轮渡、顺江轮渡以及游览客轮。
A.
正确
B.
错误
【单选题】“卫星现象”可用于鉴定:
A.
白喉杆菌
B.
百日咳杆菌
C.
流感嗜血杆菌
D.
布氏杆菌
【单选题】The author mentions the example of SBC to demonstrate that ______.
A.
people at S&P are watching out for pressures of price cuts
B.
the revenue of cable industry has been growing steadily
C.
SBC's undercutting affects cable broadband providers differently
D.
price pressures overshadow the growth of cable broadband business
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