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单选题
As a white dwarf, the sun will be.
A
the same size as the planet Mercury
B
thousands of times smaller than it is today
C
around 35 million miles in diameter
D
cold and dark
参考答案
参考解析
解析：
细节题。第三段第二句指出“一旦太阳缩小到地球大小时，它就会变成一个白色的矮星”。而文章首段最后一句提到“The sun…is thousands of times larger than the Earth”，由此可知当太阳变成一个白色的矮星时，它就会比现在小几千倍。故选B。
细节题。第三段第二句指出“一旦太阳缩小到地球大小时，它就会变成一个白色的矮星”。而文章首段最后一句提到“The sun…is thousands of times larger than the Earth”，由此可知当太阳变成一个白色的矮星时，它就会比现在小几千倍。故选B。
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