单项选择题
The author can't remember his relatives clearly because（）
A．he didn't live very long with them
B．the family was extremely large
C．he was too young when he lived with them
D．he was fully occupied with observing natur
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相关考题
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单项选择题
It can he inferred from the passage that the author was（）
A．a scientist as well as a naturalist
B．a naturalist but not a scientist
C．no more than a born naturalist
D．first of all a scientist -
单项选择题
According to the author, a born naturalist should first of all be（）
A．full of ambition
B．knowledgeable
C．full of enthusiasm
D．self-disciplined -
单项选择题
The author says that he is a naturalist rather than a scientist probably because he thinks he （）
A．has a great deal of trouble doing mental arithmetic
B．lacks some of the qualities required of a scientist
C．just reads about other people's observations and discoveries
D．comes up with solutions in a most natural way
