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63.下列何者不屬於Veratrum alkaloids之group I(esters of steroidal bases with organic acids)的化合物? (A)scillaren A (B)veratridine (C)germidine (D)cevadine

38. 比較下列同價態含氧酸的 pKa,何者為最強酸?(A) HClO2 (B) HClO3 (C) HBrO3 (D) HIO3

40. 有關兩性物質Al(OH)3 的敘述,下列何者正確? (A)酸性或鹼性溶液中皆不溶解 (B)酸性溶液中生成 Al2O3 固體 (C)過量鹽酸中溶解,形成[AlCl4] − (D)過量 NaOH(aq) 中溶解,形成[Al(OH)4] −

1 下列何者最能說明經濟學的核心概念? (A)如何在股市中買低賣高 (B)如何辨別眾多商品和服務的品質 (C)如何管控預算不要超標 (D)如何在有限的條件下實現目標

(克漏字) Deep in the perennially misty cloud forests of Central and South America resides the Glass Frog, a creature whose survival strategy has long fascinated biologists. By appearing to have mastered the art of illusion, this amphibian remains a biological __31__ with a counter-intuitive feature. While its dorsal surface is solid green, its abdominal underside is strikingly __32__, revealing internal organs like a pulsating heart. This anatomical peculiarity facilitates "edge diffusion," allowing light to __33__ the body and making its silhouette nearly invisible against the visual complexity of the surrounding foliage. Beyond appearance, these frogs exhibit diligent parental care. The female frog lays the eggs on a leaf underside, while the male stays behind to guard the egg clutches. Near waterway margins, these overhanging clusters, __34__ are vigilantly hydrated with the male frog's body moisture, would survive before they drop into the streams below. Interestingly, these amphibians attest to whether environmental health remains uncompromised, providing biological testimony to the ecosystem's __35__. They require unpolluted habitats, their presence signifying a thriving ecosystem. 31. (A) fallacy (B) enigma (C) paradox (D) conundrum