According to Krashen, ______ is responsible for the fluency of the utterances produced by speakers while learning is responsible for the accuracy of the speeches or passages.

A．practising

B．analysing

C．acquisition

D．habit-formation

1/2排列晕染法也称为（）。

A.左右晕染法

B.上下晕染法

C.渐变晕染法

D.层次晕染法