无法解释
发表于 2025-3-28 17:51:14
https://doi.org/10.1057/9780230377813the weeds of agricultural soils. In forest soils it has been shown that the seeds of some species can survive entire forest rotations (Granstrom, 1988) but others only survive for a few decades (Hill and Stevens, 1981). Late successional species, e.g. forest herbs and most trees, generally have shor
Initiative
发表于 2025-3-28 19:55:14
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美学
发表于 2025-3-29 01:02:39
]. Furthermore, one in 7 Americans are age 65 or greater, with this proportion set to rise to one in 5 by 2050 . Given the age-dependent increase in incidence and prevalence of heart failure, the proportion of heart failure will only continue to increase; already, it is one of the main causes of