自身免疫性溶血性贫血患者输血首选（）
A.全血
B.浓缩红细胞
C.红细胞悬液
D.洗涤红细胞
E.少白细胞红细胞
参考答案：D
根据宪法适用主体的不同，可以把宪法适用分为（）和（）。
—Mum , could you buy me a dress like this?
---- Certainly, we can buy _____ one than this, but ______this.
A．a better; better than
B．a worse; as good as
C．a cheaper; as good as
D．a more important; not as good as
