测定肾小球滤过率的理想试剂是()
A.菊粉
B.肌酐
C.葡萄糖
D.尿素氮
E.对氨马尿酸
参考答案:A
—Who’s knocking at the door?
—Maybe wanting to sell some new products.
A.everyboby
B.anybody
C.somebody
D.noboby
定期排污应在化学人员的监督下进行。