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  3. The distribution of mass within the core of the Earth, like the mantle that surr

The distribution of mass within the core of the Earth, like the mantle that surr

游客2025-02-25  1
问题 The distribution of mass within the core of the Earth, like the mantle that surrounds the core, has been deduced from the orbital behavior of the Earth and the motions of satellites controlled by the gravity of the Earth.
选项 A、the mantle that surrounds the core
B、that within the mantle surrounding the core
C、that of the mantle surrounding the core
D、the mantle the core surrounds
E、the distribution of mass within the mantle that surrounds the core
答案 B
解析 A、D、E中unlike前后的比较对象不对称。C用介词of不如B中用介词within；这里用surrounding代替了that定语从句，表明此动作是“持续性动作”。
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