I __Xiao Mao since she was a little girl.
A.know
B.knew
C.have known
D.had known
答案:C
灌浆防灭火浆液颗粒不应大于()。
A.1mm
B.2mm
C.3mm
D.4mm
对于羊水过多恰当的是()
A.妊娠28周后羊水过多的发病率为0.1%
B.妊娠28周后羊水量超过1000ml
C.急性羊水过多常发生在妊娠,28~32周
D.羊水的性状与正常者有差异
E.妊娠任何时期内羊水量超过2000ml