Compared to civil GPS, what is the serious problem of ADS-B to the drone?
举一反三
- _____you may have, you should gather your courage to face the challenge. A. However a serious problem B. What a serious problem C. However serious a problem D. What serious a problem
- What caused such environmental problem? A: The water that used to feed it has been diverted in an ill-irrigation scheme. B: The overfishing problem is too serious there.
- How serious is this outbreak compared to others in the past? A: Compared to other outbreaks, not as serious. B: It's just as serious as outbreaks of Ebola and SARS.
- What was the most serious problem facing William I A: The threat from France. B: The problem with economy. C: His rivals in the court. D: The confusions of society.
- What is the original meaning of the word “Drone”?