The word "it" in line 3 refers to [br] In paragraph 3, the author makes which

游客2024-01-05  19

问题  The word "it" in line 3 refers to [br]  In paragraph 3, the author makes which of the following statements about a species’survival?

选项 A、It reflects the interrelationship of may species.
B、It may depend on chance events.
C、It does not vary greatly from species to species
D、It is associated with astronomical conditions.

答案 B

解析
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