去分母得：3-（x-7）=12（x-10），
去括号得：3-x+7=12x-120，
移项、合并得：-13x=-130，
系数化为1得：x=10
动态姿势描记法包括（）
A.运动协调试验
B.过指试验
C.感觉组织试验
D.行走试验
E.步态试验
Grover Cleveland was the first president ______ in the White House.
A．got married
B．to get married
C．has got married
D．was married
