题目类型：
问答题
题目内容
ThecriticalperiodhypothesisproposedbytheneurobiologistEricLennebergbelievesthatthereexistsacriticalagefortheacquisitionofthefirstlanguageafterwhichlanguagecannotbeacquiredorlearnedanymore.
正确答案
F(Languagecanbelearnedatanystage.)?