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【简答题】
图是尿的形成示意图,请据图回答: (1)、图中结构G( )、H( )和图中的C( )构成一个肾单位。 (2)、在尿的形成过程中要经过两个作用过程,即图中的A( )作用和C ( )作用, 通过A过程形成的液体B( ), 通过C过程形成的液体D为( )。 (3)与图中的G相连的小血管E为( ),F为 ( ) (4)液体在A过程中,除了血液中的血细胞和大分子的( )以外,血浆中的一部分水分、( )、( )和尿素等物质都可以通过;而在C过程中,对人体有用的物质,如大部分的水、全部的 ( )和部分无机盐被结构I重新吸收,并且进入包围在I外的毛细血管中,送回到血液里。
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举一反三
【简答题】磁盘上的根文件夹是（ ）。
【单选题】If the several companies in the tobacco industry produce similar products but have very different marginal costs:
A.
they are less likely to engage in tacit collusion than firms with similar costs.
B.
they are more likely to engage in tacit collusion than firms with similar costs.
C.
prices for tobacco products are more likely to be near the monopoly level than in an industry whose firms have similar costs.
D.
output of tobacco products is more likely to be near the monopoly level than in an industry whose firms have similar costs.
【单选题】Which of the following provides an explanation for why alarge number of small competitors will reduce industry profits?
A.
Incumbent firms are more likely to benefit from economies of scale
B.
Customers are more likely to adopt substitute products
C.
Tacit collusion is harder to sustain
D.
The threat of retaliation against entrants is higher
【单选题】根文件夹是________。
A.
在磁盘上包含其它文件夹的最大文件夹
B.
以它所在驱动器名字命名的文件夹。
C.
不包含任何文件的文件夹
D.
打开“我的电脑”时，第一个出现的文件夹
【单选题】Advertising is an example of:
A.
tacit collusion.
B.
nonprice competition.
C.
antitrust policy.
D.
price leadership.
【单选题】The practice of one company tacitly setting prices for the industry as a whole is:
A.
tacit collusion.
B.
product differentiation.
C.
antitrust policy.
D.
price leadership.
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