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
When______,the museum will be open to the public next year.
A.completed
B.completing
C.being completed
D.to be completed
下列不属于原核细胞型微生物的是
A.细菌
B.放线菌
C.病毒
D.衣原体
E.螺旋体