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16. Which intermediate of the urea cycle directly donates one nitrogen atom for urea synthesis? (A) carbamoyl phosphate (B) ornithine (C) oxaloacetate (D) aspartate (E) fumarate

17. Which of the following complexes of the mitochondrial respiratory chain does NOT contribute to the proton gradient across the inner mitochondrial membrane? (A) Complex I (B) Complex II (C) Complex III (D) Complex IV

19. Which of the following statements about the regulation of ketogenesis is correct? I. High levels of insulin stimulate ketogenesis by increasing acetyl-CoA availability. II. The liver lacks b-ketoacyl-CoA transferase, preventing ketone body utilization. III. Glucagon promotes ketogenesis by enhancing fatty acid oxidation. (A) I and II (B) II and III (C) I and III (D) III only (E) All of them are correct.

25.放射治療(radiotherapy)對於口腔顎顏面組織的影響,下列敘述何者錯誤? (A)一般來說,第二週後開始會造成口腔黏膜潰瘍與疼痛 (B)由於唾液腺上皮代謝速率快,有高度放射線敏感度(radiosensitive),故常呈現唾液腺萎縮,造成口乾症 (C)會導致照射區域的肌肉慢性發炎進而纖維化,導致病人張口受限 (D)會造成口腔微生物菌叢改變,故在口腔衛生不良病人身上可見口腔念珠菌感染(oral candidiasis)

26.Supraomohyoid neck dissection 為口腔癌手術中常使用的頸部淋巴廓清術,下列何者為該術式所清除的淋巴層?①Level Ⅰ ②Level Ⅱ ③Level Ⅲ ④Level Ⅳ (A)僅①② (B)①②③ (C)②③④ (D)①④

42 下列何者,以現今眼光來看非屬「阻卻違法事由」? (A)得被害人之承諾 (B)義務衝突 (C)被害人可得推測之承諾 (D)教師對學生的體罰權