妊娠晚期,正常胎儿羊水中不应含有()
A.胎脂
B.胎粪
C.毳毛
D.脱落的上皮细胞
E.性激素
参考答案:B
________is well known to all that Barack Obama will keep his promise___________he will remove the military forces from Iraq.
A.As, which
B.It, that
C.What, that
D.It, which
患者,男性,42岁,因上腹部隐痛1年,进食后呕吐20天,呕吐物含有宿食。查体:贫血貌,消瘦,上腹部可见胃型,可闻及振水音。
患者最早可能出现的酸碱失衡和水、电解质紊乱的类型是()。
A.低氯血症、代谢性酸中毒
B.低钾血症、代谢性酸中毒
C.高钾血症、代谢性碱中毒
D.高钾血症、代谢性酸中毒
E.低钾血症、代谢性碱中毒