单选题
The author can’t remember his relatives clearly because ______.
A、
he didn't live very long with them
B、
he was fully occupied with observing nature
C、
the family was extremely large
D、
he was too young when he lived with them
【正确答案】
B
【答案解析】
[解析] 细节题。因为他把注意力全放在观察自然上了。第二段最后一句明确说明了这一问题的原因。
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