问题详情

Reading with the finger pointing to the word ______.
A．helps the pupil understand the words in groups and get the meaning of the whole passage
B．removes the necessity for going backwards to read something a second time
C．helps the pupil move his eyes back and forth easily when he meets difficulty
D．limits the pupil"s eyes to a very short jump which is too short to provide any meaning请帮忙给出正确答案和分析，谢谢！