单项选择题

It is implied in Paragraph 2 that years ago governments______.

A．paid much attention to the results of scientific discoveries
B．seldom introduced safety laws before disasters occurred
C．hardly ever looked into the causes of tragedies
D．imposed safety rules as soon as disasters occurred

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单项选择题

The purpose of this passage is to ______.

A．inform
B．criticize
C．entertain
D．persuade

单项选择题

What does the author mean by the statement that Abigail Adams foresaw more than could be realized in her lifetime (lines 1-2, para. 2)

A．No progress was made during her life.
B．She made predictions that eventually came true.
C．Her life was very short.
D．She didn't want to become a public figure.