―Kate, could you come to my party on Saturday evening?

―_____. [ ]

A. Yes, I'd love to

B. Oh, really? I think that sounds fun

C. I'm sorry I'm late

D. Yes. But first you have to clean your room

患者，男，45岁，牧民，主因发热、多汗、关节痛1个月于2001年6月26日入院，为不规则热，且高热时无明显不适，体温下降后自觉症状加重，常有出汗，与发热无关，肩关节有针刺样疼痛。查体，体温37.5℃，腋下淋巴结肿大无压痛，皮肤黏膜未见瘀点、瘀斑及皮疹，自服扑热息痛无明显好转。

进一步检查最有意义的是()

A．血常规

B．取血或骨髓作培养

C．凝集试验

D．ELISA法

E．肩关节X线片及胸片