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12 臨床上為病患測量脈搏時,下列何種狀況會使病患出現心搏過慢的情形? (A)甲狀腺功能亢進 (B)嚴重貧血 (C)缺氧 (D)顱內壓升高

19. Which mechanism BEST explains how antisense RNA can inhibit gene expression through RNA-RNA duplex formation? (A) The antisense RNA recruits general transcription factors to block RNA polymerase binding at the promoter. (B) The RNA-RNA duplex formation interferes with splicing by masking splice sites on the DNA template within the intron. (C) RNA-RNA duplex formation increases RNA polymerase II processivity, leading to increased transcription of the target gene. (D) The RNA-RNA duplex recruits Argonaute proteins to trigger endonucleolytic cleavage of the sense mRNA in the nucleus. (E) Duplex formation blocks the ribosome-binding site or start codon on the sense mRNA, preventing translation initiation.

25.Which of the following statements BEST explains how increased CO₂ production contributes to the regulation of breathing rate? (A) Increased CO₂ directly binds to hemoglobin, preventing oxygen transport and mechanically stimulating lung expansion to increase ventilation. (B) CO2 dissolves in plasma and is rapidly exhaled without chemical conversion, and breathing rate increases in response to decreased blood O2 levels. (C) Increased CO₂ is converted to carbonic acid by carbonic anhydrase in red blood cells. Carbonic acid dissociates leading to an increase in H+ concentration and a decrease in pH, which is detected by chemoreceptors. (D) CO2 produced during exercise remains primarily in gaseous form within tissues, directly activating stretch receptors in the lungs to increase breathing frequency. (E) Elevated CO2 suppresses respiratory center activity by stabilizing blood pH, thereby reducing the need for increased ventilation during exercise.

22.有關文中歸有光提及兒子之事,下列敘述何者正確? (A)兒子住在此處七年,父子之情深厚 (B)十二月八日為兒子獨自離家的時間 (C)明確交代兒子確切死因及死亡地點 (D)兒子生前喜與弟弟於思子亭中嬉戲

12. X1 年間,乙公司在長期投資方面發生下列事項: 4 月 6 日:以每股$3.25 購入丙公司股票 2,000 股,另支付$500 手續費。 7 月 7 日:收到丙公司發放的現金股利,每股$0.70。 12 月 31 日:丙公司報導本年度淨利為$50,000。丙公司共有 8,000 股普通股流通在外。 請問截至 X1 年 12 月 31 日,「採權益法之投資-丙公司股票」帳戶餘額應為多少? (A)$17,600 (B)$18,100 (C)$19,500 (D)$20,900