患者，男，40岁。患再生障碍性贫血。面色苍白，唇甲色淡，头晕，心悸，乏力，动则加剧，舌淡，脉细弱。治疗应首先考虑的方剂是

A．右归丸合当归补血汤

B．左归丸、右归丸合当归补血汤

C．八珍汤

D．六味地黄丸合桃红四物汤

E．左归丸合当归补血汤

33．In the reading –room there are tables,      you can sit there to read .

A．at which

B．in which

C．and

D．where