胎儿娩出后胎盘尚未娩出者，称为胎盘滞留
A．15min
B．20min
C．30min
D．1min
E．2min
参考答案：C
_______ such a good chance, he planned to learn more.
A．Given
B．Being given
C．Having given
D．Giving
甲比乙多10%，乙就比甲少10%。[ ]
