省公司《安全工作守则》规定，送电线路巡视作业必须严格遵守：（）
A.六要六步八禁
B.六要九步九禁
C.八要九步八禁
D.五要八步十禁
参考答案：A
E-mail, as well as telephone, ______ an important part in daily communication.[ ]
A. is playing
B. have played
C. are playing
D. played
出租汽车经营单位对出租车驾驶员采取单车承包或承租方式运营，出租车驾驶员从事客货营运取得的收入，按“劳务报酬所得”项目征税。( )
