下载APP
举一反三
【单选题】Cyber crime, the illegal activity committed on the Internet, is the fastest growing criminal activity in the world and is of major concern to the Government. From traditional online crime to new crime...
A.
the unlawful activities committed by the Internet
B.
the illegal activities done by telephoning
C.
the unlawful activities done by getting others" digital records
D.
the illegal activities committed by hacking others" computers
【单选题】下列有关分离工艺机床使用技术安全操作规程的说法正确的是（）
A.
操作前要做好一切劳动保护工作
B.
检查机床周围有无障碍物，要确保工作地整洁有序
C.
试车：在确认机床情况正常后才能启动运转，观察有无异常现象
D.
机床未在润滑良好的情况下也可操作