_____, his idea was accepted by all the people at the meeting.[ ]

A. Strange as might it sound

B. As it might sound strange

C. As strange it might sound

D. Strange as it might sound

女，29岁。双腕和膝关节疼痛，伴高热3个月。曾有癫痫样发作1次。心脏超声检查示中等量心包积液；X线胸片示右侧少量胸腔积液。血常规检查Hb、WBC和血小板下降。尿蛋白（++），多种抗生素治疗无效。

最可能诊断为（）

A.肾小球肾炎急性发作

B.恶性肿瘤颅内转移

C.系统性红斑狼疮

D.系统性硬化病

E.骨关节炎