下列属于第二类医疗器械的是
A．切片机B．人工肾C．创可贴D．针灸针E．一次性使用输液器
参考答案：D
翘关
–Is this book yours ? – No it’s his , is in bag .
A．Mine , my
B．My ,mine
C．Mine mine
D．My ,my .
