妊娠高血压综合征发生时间多在()
A．妊娠前
B．妊娠20周后
C．妊娠24周后
D．妊娠28周后
E．分娩期
参考答案：B
Ladies and gentlemen, please remain _____ until the plane has come to a complete stop. [ ]
A. seated
B. seating
C. to seat
D. seat
右侧卵巢动脉来自
A．腹主动脉
B．髂总动脉
C．髂外动脉
D．髂内动脉
E．肾动脉
