下列哪一项检查对诊断溶血性贫血最可靠（）
A.血清结合珠蛋白测定
B.血清胆红素测定
C.红细胞寿命测定
D.尿中尿胆原检查
E.粪胆素原测定
参考答案：C
.
The house caught ______ fire while they were away. It must have been set ______ on fire by someone.
A．a; a
B．a; /
C．/; a
D．/;/
13的平方根是__________。
