小红把3x+7错写成3(x+7),结果比原来[ ]
A.多3
B.少3
C.多14
D.少7
答案:C
Leaves are found on all kinds of trees, but they differ greatly ______ size and shape. [ ]
A. on
B. from
C. by
D. in
病毒性心肌炎心肾阳虚证的用方是( )
A.银翘散B.附子汤C.葛根芩连汤D.生脉散合复脉汤E.血府逐瘀汤合生脉散