化脓菌感染可见()
A.黄色脓性痰
B.黄绿色或翠绿色痰
C.微黄奶酪样痰
D.痰黏稠牵拉成丝
E.水样痰,内含粉皮样物
参考答案:A
Jenny is on holiday now. I wonder _______. [ ]
A. when she will come back
B. when she came back
C. when will she come back
D. when did she come back
醋酸地塞米松中硒的检查采用以下哪种方法()
A.氧瓶燃烧有机破坏后茜素氟蓝比色法测定
B.氧瓶燃烧有机破坏后四氮唑比色法测定
C.氧瓶燃烧有机破坏,加盐酸羟胺还原,与2,3-二氨基萘缩合,紫外法测定
D.氧瓶燃烧有机破坏,加过氧化氢氧化,与2,3-二氨基萘缩合,紫外法测定
E.用湿法有机破坏,加过氧化氢氧化,与2,3-二氨基萘缩合,紫外法测定