金雪球-优先3号理财产品最大的特点为（）
A.收益随持有期限递增
B.T+0交易确认
C.购买起点金额50万元
D.柜面、网银交易
参考答案：A
The number of people invited to the party _____ sixty, but a number of them ______absent.
A．were; was
B．was; was
C．was; were
D．were; were
隐形义齿制作过程中开盒过早会导致（）。
A.灌注不足
B.灌注后变形
C.人工牙与基托结合不良
D.基托内杂质
E.义齿固位不良
