足月妊娠时子宫腔容量为：（）
A．400ml/h
B．500～700ml/min
C．800ml
D．3600ml/h
E．5000ml
参考答案：E
How many _____ are there in the picture?[ ]
A. policemans
B. policemen
C. rice and meat
D. bread and milk
果蔬的冷冻浓缩
