2. 外语
  3. At its center, the sun has a density of over a hundred times ______and a temperature of 10 to 20 million degrees centigrade.

At its center, the sun has a density of over a hundred times ______and a temperature of 10 to 20 million degrees centigrade.

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问题 At its center, the sun has a density of over a hundred times ______and a temperature of 10 to 20 million degrees centigrade.
选项 A、that of water
B、of water
C、than that of water
D、water
答案A
解析
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