移动本地电话业务可分为移动本地市话()业务和移动本地()业务。
参考答案:去话;来话
When he came back, he found the bag he had________over the seat was gone.[ ]
A. left to hang
B. left hanging
C. left hung
D. to leave hanging
巴比妥类药物可与下列哪种试剂反应生成白色沉淀
A.水
B.银盐
C.吡啶-硫酸铜
D.钴盐
E.盐酸