The ___of North Korea and South Korea is getting worse and worse these days.

A．position

B．situation

C．occasion

D． condition

患者女，35岁。心悸、甲状腺肿大，并伴有轻度呼吸不畅，压迫感，首次妊娠3月余，诊为原发性甲亢。最有效的治疗方法是（）

A.终止妊娠

B.抗甲状腺药物治疗

C.131Ⅰ治疗

D.甲状腺次全切除术

E.放射治疗