本行卡和国际卡，自吞卡日起保存（）个工作日，吞卡逾期持卡人未领取要剪角作废。
A.3
B.5
C.10
D.20
参考答案：D
— Hurry up!It's already 8:20.
— ________ ! It takes only 20 minutes to get to the station and the train doesn't leave until 9:20. [ ]
A. No hurry
B. No way
C. No problem
D. No chance
下列哪项产前诊断技术准确性最高
A．胎儿镜检查B．绒毛活检C．脐血穿刺D．外周血分离胎儿细胞E．羊水细胞培养
