防空识别区是濒海国家为防范可能面临的空中威胁,在领空外划设的空域范围,用于及时识别、监视、管制和处置进入该空域的航空器,以保卫空防安全。2013年11月23日,我国政府宣布划设东海防空识别区,这是我国有效行使 的必要措施。
I felt very tired when I got home,and I________straight to bed.
The water supply has been cut off temporarily because the workers ________ one of the main pipes.
Hurry up!Mark and Carol________us.
—Do you think Mom and Dad________late? —No,Swiss Air is usually on time.
Shakespeare’s play Hamlet________into at least ten different films over the past years.