Which do you like _________,swimming or running?[ ]
A.best
B.better
C.good
D.well
答案:B
下列分子中,属于非极性的是 [ ]
A.SO2
B.BaCl2
C.BBr3
D.COCl2
目前测定肾小球滤过率的金指标是( )
A.内生肌酐清除率B.对氨基马尿酸清除率C.尿素清除率D.尿酸清除率E.菊粉清除率