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【单选题】
在一项研究情绪的实验中要求a组被试,在前后两次情绪测试之间观看恐怖电影,要求b组被试在前后两次情绪测试之间休息,则a组被是通常被看作是( )A.
后测控制组设计的控制组
B.
后测控制组设计的实验组
C.
前测后测控制组设计的实验组
D.
前测后测控制组设计的控制组
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举一反三
【单选题】Which one of the following is the best title for this passage?
A.
The Negative Effect of Wilderness Tourism
B.
Harnessing the Value of Wilderness Tourism
C.
Wilderness Tourism is going Through a Tough Time
D.
My Own Experience with Wilderness Tourism
【单选题】Which one of the statements is NOT the negative effect of monopolies?
A.
set any price they choose
B.
make large profit
C.
lose incentive to innovate
D.
supply inferior products
【单选题】One negative effect of the Industrial Revolution was ________.
A.
the invention of the steam engine
B.
the child labor
C.
the increase in trade
D.
the invention of the Spinning Jenny
【单选题】One negative effect of the Industrial Revolution was ______.
A.
the invention of the steam engine
B.
child labor
C.
the increase in trade
D.
the invention of the spinning jenny
【单选题】 One negative effect of the Industrial Revolution was .
A.
the invention of the steam engine
B.
child labor
C.
the increase in trade
D.
the invention of spinning jenny
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