While crossing the road, an old man was knocked down by a car and badly ______. [ ]

A. wounded

B. ruined

C. injured

D. harmed

依据《国际民用航空公约》，外国航空器在一国领空( )。

A．享有无害通过权

B．不享有无害通过权

C．享有“两项自由”

D．享有“五项自由”