《线路保养质最评定标准》规定，对“无缝线路钢轨折断未及时进行临时处理或插入短轨未及时进行永久性处理”，应进行（）查看。
参考答案：全面
泰国外汇收入的主要来源之一( )。
A．制造业
B．农产品
C．矿产业
D．电子业
—I went to see you yesterday evening. But you weren’t in. Where were you then？
—I_____ a walk by the lake with my husband．
A．was having
B．am having
C．have had
D．have
