词汇与结构Situation awareness, or SA, is the ______of environmental elements within a volume of time and space, the understanding of their meaning, and the projection of their status in the near future.
举一反三
- To ______environmental protection, clean power will be developed more rapidly in the near future.(promote / prevent)
- ———is a prefix meaning “before” in space, time, condition.
- It’s high time the government _________ some measures to raise people’s awareness of environmental protection.
- Advertising employees only verbal elements to fill specific space and time formats.
- What are the elements of a minutes heading? A: time B: space C: chairman D: present