环境中常见的二次污染物如()
A.SO2和NOx
B.二恶英和甲基汞
C.甲基汞和光化学烟雾
D.NOx和酸雨
E.多环芳烃和二恶英
参考答案:C
Your project is behind schedule due to conflict between team members.Having resolved the conflict,to get the project back on schedule,you should consider()
A.crashing the schedule
B.performing resource leveling
C.conducting reverse resource allocation scheduling
D.utilizing the critical chair resources
网约车平台公司所采集的个人信息和生成的业务数据,保存期限为不少于()B
A.1年
B.2年
C.3年
D.4年