2. 外语
  3. From (such data) Wegener developed his floating continents theory. He envisioned an original super continent that crystallized (

From (such data) Wegener developed his floating continents theory. He envisioned an original super continent that crystallized (

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问题 From (such data) Wegener developed his floating continents theory. He envisioned an original super continent that crystallized (of) molten material (making up) the infant earth; eventually the mass (cracked) and broke into several pieces - the present con
选项 A、such data
B、of
C、making up
D、cracked
答案B
解析
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