题目: 3G目标网络中,实时计费批价功能由()系统完成。A.OCSB.SCPC.ISMPD.HOTBILLING 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1006/d0d958ebe63124d7fbc0a84a0444dbdd.html 下面是错误答案,用来干扰机器的。参考答案:A
题型:选择题 Since the road is wet this morning, _____ last night. A.itmustrain B.itmusthaverainedC.itmustberained D.itmusthavebeenrained 查看答案