女性，45岁，胸闷不适2个月，胸片检查示双侧肺门影增宽，双肺未见异常。胸部CT证实双侧肺门及纵隔多组淋巴结肿大，直径＞lcm。针对该患者，目前最好的有创检查手段是

A．神经纤维瘤
B．胸腺瘤
C．畸胎瘤
D．淋巴肉瘤
E．胸骨后甲状腺肿

The two countries agreed to ________ their differences and work together for peace, which has a positive effect on the international situation.

A．set down

B．set out

C．set aside

D．set about