[ Vocabulary ]
any required factor that restricts, or holds back the growth of a population
A. community
B. biotic factors
C. abiotic factors
D. limiting factor
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Grammar › ViewIf we had studied hard,we_____________passed in SEE.
A. will
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Grammar › View
Li Fang is singing the national anthem now.
The adverb of time in this sentence is _________.
A. now
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