下列哪种溶血性疾病血浆游离Hb在正常范围()
A.阵发性睡眠性血红蛋白尿
B.黑尿热
C.蚕豆病
D.遗传性球形红细胞增多症
E.冷凝集素综合征
参考答案:D
如图所示,画出物体A所受重力的示意图.
— Have you _____ your things, Bob?
— The train is leaving at 2:30 this afternoon, so we don't have too much time. [ ]
A. added up
B. hidden away
C. set down
D. packed up