a直至1972年中美建交后,美国移民政策才有所改变,华人在美国的人数也相应增加 Until after in 1972 China and America established diplomatic relations, the US land settlement policy only then had the change, the Chinese people also correspondingly increases in US's population [translate] ...
1972. Bioenergetics of a sand goby (Gobius minutus) population. J. Fish. Res. Board Can. 29: 187–194.Healey, M.C., 1972. Bioenergetics of sand goby (Gobius minutus) population. J. Fish. Res. Board Canada 29, 187-194.Healey, M. Bioenergetics of a sand goby (Gobius minutus) ...
Population and the American Future. The Commission on Population Growth and the American Future. Pp. 186. (US Government Printing Office, Washington, 1972.) Price $1·75. 来自 ProQuest 喜欢 0 阅读量: 34 作者: Dreijmanis John 摘要: Keratin K6 is expressed in epidermis only in pathological ...
China - US relation: Dangling between friends and rivals Today, with a glooming economy and rising status among all countries, China, the biggest developing economy and largest population owner, is facing more challenges ever before. [句子错误]本句语法不规范,请检查 [拼写错误]glooming拼写错误,可...
On morphological and developmental grounds, we postulated that the mammalian Peyer's patch-type intestinal lymphoepithelial tissues might represent the central lymphoid organs for differentiation of the population of lymphoid cells respo... DY Perey,MD Cooper,RA Good - 《Surgery》 被引量: 69发表: ...
Because toothfish are generally caught by baited longlines, assessment of stock size based on CPUE as a measure of population abundance alone has not been appropriate for management (Agnew, 2004). This is because many of the assumptions made in the use of CPUE as an index of population abun...
Turon X, Giribet G, López S, Palacín C (1995) Growth and population structure of Paracentrotus lividus (Echinodermata: Echinoidea) in two contrasting habitats. Mar Ecol Prog Ser 122:193–204 Google Scholar Vasquez J (2007) Ecology of Loxechinus albus. In: Lawrence JM (ed) Edible sea ...
The sole surviving population of the Bahaman hutia, Geocapromys ingrahami, was studied on East Plana Cay, a small semiarid island in the Bahamas. Population density was estimated to be 30 per hectares or 21.3 kilograms per hectare. Repro... GC Clough - 《Journal of Mammalogy》 被引量: ...
While reformers gradually succeeded in weaving a heterogeneous population of elementary and secondary schools into more or less coherent regional and state systems (Steffes 2012; Tyack 1974), individual colleges and universities retained substantial autonomy from one another, and from the state, even ...
population as a whole. Eighty six percent of white-only respondents reported intending to vaccinate in response to the required vaccination question but only 69 percent of them reported intending to vaccinate in response to the control vaccination question. Ninety four percent of Hispanic-only ...