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44. What is the ongoing debate discussed in the last paragraph? (A) The sense, either visual or perceptual, that influences athletes’ performance most directly. (B) Which of the two, computing hardware or program software, is needed for training baseball batters. (C) Whether athletic expertise is acquired by improving visual skills or by enhancing cognitive abilities. (D) The technology, hardware or software, that improves eyesight of baseball players, including pitchers.

45. According to the passage, which of the following statements is correct? (A) Pitchers are not subjects in this trend of research because of bad eye sight. (B) Findings of studies on what contribute to athletic expertise are still inconclusive. (C) The findings of the study on college baseball athletes agree with the software claim. (D) Using baseball players as subjects to examine sensorimotor skills is that they are well paid.

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1. 一位工人不小心打翻了 溶液，污染他的皮膚 10 cm2，污染活度為 3700 Bq，則污染 皮膚的劑量率為多少 Gy/h？ (  貝他粒子的平均能量 = 0.7 MeV，在組織之質量吸收係數為 9.18 cm2/g) (A) 6.42×(B) 1.28×(C) 6.42× (D) 1.28×