I'm going to buy a watch as _____ gift to my daughter, _____ one looking nice but not expensive. [ ]

A. a, the

B. a, /

C. the, the

D. /, a

患者初病表现为手足不温，身易恶寒，指尖发青，继而发展为面色苍白，唇甲色淡，小腹冷痛，手足冷凉，脉细欲厥。治用（）

A.当归四逆汤

B.通脉四逆汤

C.通脉四逆加猪胆汁汤

D.四逆加人参汤

E.白通汤