腹痛绵绵，时作时止，痛时喜按，大便或溏，神疲畏寒，苔薄白，脉沉细。治疗取穴应首选（）。

A.取督脉、足太阴经、手阳明经穴为主

B.取任脉、足阳明经穴为主

C.取背俞、任脉经穴为主

D.取足少阴经、足阳明经穴为主

E.取足厥阴经、足太阴经穴为主

Though the twins look alike, they _____in many aspects, especially in temperament and

personality

A．range

B．change

C．choose

D．differ