足月妊娠时,羊水无回声区最大前后径为()
A.10cm
B.2cm
C.4cm
D.5cm
E.6cm
参考答案:E
Sorry. There is ________ rice in the bowl. Let me get some for you. [ ]
A. few
B. a few
C. little
D. a little
()是指在其他群药沸腾煎煮15分钟后,再放上中药饮片同煎5-10分钟即可
A.兑服
B.烊化
C.先煎
D.后下