心房的左右之分起始于胚胎的()
A.第1周末
B.第2周末
C.第3周末
D.第4周末
E.第5周末
参考答案:C
All of the following material can be absorbed directly by the surface absorptive cell of the intestines EXCEPT
A.water
B.monosaccharide
C.free fatty acids
D.ions
E.small peptides
符合溶血性黄疸的是
A.结合胆红素轻度增高
B.非结合胆红素中度增高
C.尿胆原减低
D.结合胆红素/非结合胆红素>35
E.尿胆红素强阳性