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单项选择题

What effect does excessive positive ions have on some people

A．They think they are mad.
B．They feel very tired.
C．They become violently sick.
D．They are too tired to do-anything.

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单项选择题According to the passage, members of the royal family ______.

A．should learn to know how normal people lead their lives
B．have too much money to spend
C．have more troubles than common people do
D．may not feel deeply satisfied with what they achieved

单项选择题The sentence silver spoons can leave a bitter taste in the first paragraph probably implies ______.

A．rich children often kill themselves
B．rich children are not always happy
C．expensive spoons are preferred by the rich
D．rich children are a miserable lot