阵发性睡眠性血红蛋白尿（）
A.红细胞渗透脆性试验
B.酸溶血试验
C.抗人球蛋白试验
D.高铁血红蛋白还原试验
E.血红蛋白电泳分析
参考答案：B
LLC的帧包括（）
Which of the following is a general problem associated with external credit enhancements External credit enhancements:（）
A. only provide protection against systematic risk, not against idiosyncratic risk.
B. are very long-term agreements and are therefore relatively expensive.
C. are subject to the credit risk of the third-party guarantor.
