2. 医学
  3. Organisms must be buried rapidly to escape destruction by the elements and to be protected agents of weathering and erosion.

Organisms must be buried rapidly to escape destruction by the elements and to be protected agents of weathering and erosion.

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问题 Organisms must be buried rapidly to escape destruction by the elements and to be protected agents of weathering and erosion.
选项 A、dangers
B、examples
C、areas
D、causes
答案A
解析 agent危险。
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