It now appears that Gleason was far closer to the truth than Clements. The ecological community is largely an accidental assembl

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问题 It now appears that Gleason was far closer to the truth than Clements. The ecological community is largely an accidental assemblage of species with similar responses to a particular climate. Green ash trees are found in association with plains cottonwood trees because both can survive well on floodplains and the competition between them is not so strong that only one can persevere. One ecological community often flows into another so gradually that it is next to impossible to say where one leaves off and the other begins. Communities are individualistic.
The word "persevere" in the passage is closest in meaning to

选项 A、reproduce
B、fail
C、expand
D、continue

答案D

解析

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托福（TOEFL）

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