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A．historical
B．educational
C．cultural
D．political
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单项选择题A．toB．withC．onD．of

A．to
B．with
C．on
D．of

单项选择题From the tone of the passage we know that the author is ______.

A．doubtful about the necessity of keeping H-bombs at home for safety
B．unhappy with those who vote against the ownership of H-bombs
C．not serious about the private ownership of H-bombs
D．concerned about the spread of nuclear weapons