单项选择题

A．Not many people attended the lecture.
B．The lecture turned out as expected.
C．People thought the lecture was hard to hear.
D．The lecture was excellent.
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单项选择题
Human ingenuity was initially demonstrated in ______.
A．the use of machines to produce science fiction
B．the wide use of machines in manufacturing industry
C．the invention of tools for difficult and dangerous work
D．the elite's cunning tackling of dangerous and boring work
单项选择题
The word gizmos (line 1, paragraph 2) most probably means ______.
A．programs
B．experts
C．devices
D．creatures
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