闪债务人逾期未履行偿债义务超过（），经核查确实无法收回．企业应确认该笔应收帐款为坏帐．
A.90天
B.6个月
C.2年
D.3年
参考答案：D
----What did you say just now ?
----I asked you________.
A．why you wanted to become a nurse
B．how long had you stayed in the town
C．whether was there a bank near our school
D．when will you go shopping with me
在施工过程中，当分部工程达到验收条件时，应由（）组织验收。
A.专业监理工程师
B.总监理工程师
C.施工单位项目负责人
D.建设单位现场代表
