题目内容:
According to Bialystok and Martin-Rhee, why is the second task more challenging than the first one?
A.It demands the subjects to solve a variety of tough problems. B.It involves a more complicated cognitive process in the brain. .
C.It requires more time and experience to complete the second task.
D.It forces the subjects to focus all their attention on the experiment.
参考答案:
答案解析: