011. The asphalt at La Brea seeps to the surface,
especially in the summer, and forms shallow
puddles that would often have been
concealed by leaves and dust.
The word "concealed" is closest in meaning to
which of following?
012. The ocean bottom --- a region nearly 2. 5
times greater than the total land area of the
Earth --- is a vast frontier that even today is
largely unexplored and uncharted, until about a
century ago, the deep-ocean floor was
completely inaccessible, hidden beneath
waters averaging over 3,600 meters deep.
The word "inaccessible" is closest in meaning
to which of following?