______, a linguist in America, is regarded as the father of American structuralism.
A. Franz Boas
B. Edward Sapir
C. Leonard Bloomfield
D. Hell Dymes
查看答案
Stephen Krashen put forward ______ in the 1970s.
A. the discourse theory
B. the hypothesis of linguistic universals
C. the acculturation theory
D. the monitor theory
Traditional linguists gave priority to the ______ in the study of language.
A. spoken form
B. written form
C. pronunciation
D. vocabulary
某人下山的速度是上山的1.5倍，此人从山脚出发开始上山，上到山顶后立即返回，出发2小时后刚好走了下山路程的一半。则下山还需要()小时。
2007年2月4 日，中国在非洲建立了第一个经济贸易合作区，所在国是()
A. 坦桑尼亚
B. 赞比亚
C. 南菲
D. 埃及
微信支付 
支付宝支付