Many in the credit industry expect that credit cards will eventually ____ paper money for

almost everypurchase.   [ ]

A. exchange  

B. decrease    

C. trade      

D. replace

对于大多数Ⅱ类错，矫正其前牙深覆盖远中磨牙关系的有效方法是（）

A.近中移动下颌

B.远中移动上颌

C.抑制上颌向前的发育

D.近中移动上颌，

E.抑制下颌过度发育