A.Migration is in most cases dictated by life course events as opposed to the economic factors that contribute to the development of cities.
B.Population growth tends not to affect the availability of proxies for replacing emigrants from population centers.
C.Sedimentary populations are more historically significant than nomadic or migratory ones.
D.It is permissible to rely upon a single source of information in studying population movement patterns.
E.Migration can be disregarded as a demographic pattern in historical contexts prior to the development of large cities.
第7题
ABO血型抗原属于()
A. 异种抗原
B. 同种异型抗原
C. 异嗜性抗原
D. 自身抗原
E. 肿瘤相关抗原
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!