【单选题】I was worried about my driving test, hut I passed it.()
C.
Congratulations!That's not easy.
【单选题】I was worried about this out—dated equipment.()
C.
Yeah, it may bring a health hazard.
【单选题】40为了执行生产控制活动,应该依靠一些关键信息,如一些文件和报告,包括:计划文件、控制文件和()这三个主要资源。
【单选题】下列选项中属于数据库管理系统的是____。
【单选题】-- I was worried about my driving test, but I passed it.-- ().
C.
Congratulations! That’s not easy.
【单选题】I was worried about you.
【单选题】下列选项中属于数据库管理系统的是____。
【单选题】下列选项中属于数据库管理系统的是____。