SLE患者具有诊断意义的ANA滴度为（）
A.>1：50
B.>1：60
C.>1：70
D.>1：80
E.>1：90
参考答案：D
--- Look there’s a painting on the floor. Is __________ painting yours, Joe?
--- No, I don’t have a painting at all.
A. a B. the C. /
供料系统停电处理？
