試題詳解

      At one of the world’s highest lakes, the endangered Lake Titicaca frog survives huge variations in temperature and intense UV rays by permanently living on the lake’s floor. Since the frog never comes to the surface, it breathes only through its skin. As a consequence, it evolved with many folds and flaps to increase its surface area. “Tragically, I’ve only seen this frog in a blender,” Cooke reports. “People have decided he’s a medicinal cure.” Cooke’s videos expose frog juice bars, which have caused the ancient species to be on the brink of extinction. 

20. The main idea of the above paragraph (Reading 2) is 
(A) Lake Titicaca frog is a strange animal.
(B) People only find this frog in a blender.
(C) Lake Titicaca frog is a rare amphibian species on the brink of extinction.
(D) Lake Titicaca frog never comes to the surface.
(E) The frog breathes only through its skin.