单项选择题

Which one of the following was first discovered or invented in human civilization
A) Agriculture. C) Fire.
B) Language. D) Writing.

A．Which one of the following was first discovered or invented in human civilization
B．Agriculture.
C．Language.
D．Fire.
E．Writing.

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单项选择题

The change in Japanese Life-style is revealed in the fact that ______.

A．the young are less tolerant of discomforts
B．the divorce rate in Japan exceeds that in the Europe
C．the Japanese endure more than ever before
D．the Japanese appreciate their present life

单项选择题

It is the author's view that in human civilization agriculture______.

A．is the most important step man has ever made
B．is only less important than the discovery of fire
C．had long been practiced since 3000 B. C.
D．can be ranked in importance with the invention of machines

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