(-2)2=|-2|=2,
故答案为:2.
It ______ me four hours to do some shopping. [ ]
A. use
B. take
C. uses
D. takes
经络的临床应用不包括()
A.说明病理变化
B.指导辨证归经
C.指导针灸治疗
D.说明气血状态
E.指导药物归经