193 -The passage tells us that amphibious vehicles ---- . A) are not capable of travelling efficiently on water
B) are the result of the very latest technology
C) can also function as aeroplanes in certain situations
D) are able to travel on water as well as on land
E) are still in the early stages of development
194-The passage explains ---- . A) why the Hovercraft is more efficient ~n water than on land
B) the system which enables all amphibious vehicles to function as boats
C) that the Hovercraft can travel over various surfaces because it does not touch them
D) the best method by which the inefficient amphibious vehicles can be improved
E) that the Hovercraft is not truly an amphibious vehicle
