【正确答案】 错误

【答案解析】本题在2009年下半年真题第三大题第30小题考查过，主要考查第二外语学习中所犯错误的原因。
(No，a large proportion of grammatical errors could not be explained by mother tongue interference．One study shows that only 3 percent of the subjects’errors could be classified as interference errors，while 85 percent errors were developmental errors．)实践表明，来自母语的干扰并非是错误的唯一或主要原因。一项研究表明，仅有3％的主语错误可以归类为母语干扰错误，而85％的错误都是发展阶段的错误。