The natural order hypothesis is presumed by Krashen to be the result of the learned system, operating free of conscious grammar.()
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简答题 决定一项旅游资源价值大小的主要因素有哪些?
For Krashen, the affective filter is the principal source of individual difference in second language acquisition.()
A. 对
B. 错
反射式测光表用来测定被摄体表面一定区域亮度。
A. 对
B. 错