2. 外语
  3. The temperature at the center of the Sun is much higher than it is at the surface. There must be a solid core in the core of th

The temperature at the center of the Sun is much higher than it is at the surface. There must be a solid core in the core of th

admin2009-06-15  50
问题 The temperature at the center of the Sun is much higher than it is at the surface.
There must be a solid core in the core of the Sun.
选项 A、Right
B、Wrong
C、Not mentioned
答案B
解析 见“However，no one really knows，since the center of the Sun can never be directly observed”。
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