在危险化学品事故的控制和防护措施中,控制、预防化学品危害通常的做法是()。
A. 不使用有毒、有害和易燃、易爆的化学品
B. 选用无毒或低毒的化学品代替有毒、有害化学品
C. 采用工程技术措施
D. 生产过程的密闭化、自动化
What is stated in the article?
A. Richard Tucker is acquainted with photography.
B. Mr. Whitman is a novice photographer.
C. Mr. Whitman"s job is much easier due to advanced technology.
D. Mr. Whitman was an advertising agent.
When are the workers being asked to return to work?
A. Monday afternoon.
B. Tomorrow morning.
C. Tuesday morning.
D. Wednesday afternoon.
工程建设项目投资者最关注的是项目的 ()
A. 收益水平和投资回报
B. 风险高低和发展前景
C. 收益水平和风险高低
D. 投资回报和发展前景