【简答题】A.They promised there would be one thousand million people without safe drinking water by 2015. B.They promised there would be one hundred million people without safe drinking water by 2015. C.They pr...
【简答题】To save the drowning child,the boy plunged into the icy water without hesitation,________his own safety. [ ] A.despite of B .regardless of C.unaware of D.because of
【单选题】In restricted visibility the safe speed of a vessel without operational radar may be ________ enable effective avoiding action to be taken on sighting another ship.