John has determined to _______ teaching in the quake-hit area when he graduates from university.

A．pick up

B．set up

C．take up

D．give up

患者，男，56岁。胃溃疡病10年。现胃痛隐隐，喜温喜按，畏寒肢冷，泛吐清水，腹胀便溏，舌淡胖，边有齿痕，苔白，脉迟缓。治疗应首选的方剂是（）

A.黄芪建中汤

B.活络效灵丹合丹参饮

C.化肝煎合左金丸

D.一贯煎合芍药甘草汤

E.柴胡疏肝散合五磨饮子