19. How does the writer of this article describe the interaction seen in the paragraphs?
(A) It is as a new ball from the starting line.
(B) It is a ball smashed on the ground.
(C) It is like a ball going back and forth.
(D) It looks as if it is a spinning ball.
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統計: A(56), B(65), C(468), D(38), E(0) #1027104
統計: A(56), B(65), C(468), D(38), E(0) #1027104