Each plant and animal by natural tendency, ______ far more seeds and eggs and se

游客2025-05-08  1

问题 Each plant and animal by natural tendency, ______ far more seeds and eggs and seedlings and young, than is necessary to maintain ______ population.

选项 A、is to produce ... their
B、produces ... its
C、produces their
D、produce... their

答案 A

解析
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