下列哪项属于病毒性肺炎病原检测的快速诊断()
A.病毒分离
B.双份血清抗体检测
C.鼻咽分泌物培养
D.气管吸取物培养
E.特异性IgM检测
参考答案:E
描述你自己。在横线上填上合适的单词。
My name is . I'm years old. My hair is (long, short). My eyes are
(blue, brown, black). I am (quiet, cute, thin, strong). I like (sports, music, computer, play).
I like eating (apples, bananas, oranges). I like Mom and Dad.
对于NPN型晶体管共发射极电路,当增大发射结偏置电压Ube时,其输入电阻也随之增大。