技能考核合格证有效期为()年。
A.1
B.2
C.3
D.4
参考答案:B
With the boy______ the way, we had no diffaculty ______the village.
A.to lead; to find
B.leading; to find
C.leading; finding
D.to lead; finding
贷记卡账户拖欠在()天以上的,不能办理卡片激活业务。
A.30天
B.60天
C.90天
D.1年