題庫堂
檢索
題庫堂
首頁
數學
英文學習
政治學
統計學
經濟學
藥理學
中醫藥物學
財政學
法學知識
公共行政
警察學
BI規劃師
財務管理
公共衛生學
工程經濟學
電力電子學
當前位置:
首頁
20. 下列何者結構具有對掌性質(chirality)?(A) 2,4-Dimethylheptane (B) 5-Ethyl-3,3-dimethylheptane(C) cis-1,3-Dimet
問題詳情
20. 下列何者結構具有對掌性質(chirality)?
(A) 2,4-Dimethylheptane
(B) 5-Ethyl-3,3-dimethylheptane
(C) cis-1,3-Dimethylcyclohexane
(D) 4-Methylcyclohexanone
參考答案
上一篇 :
題組六: 關於生物物種的種化(speciation),以下面 A、B、C、D 共 4 種圖示表示,請問各自是屬於何種種化模型?【題組】31.peripatricspeciation(A)(B)(C)
下一篇 :
21. 請問要維持蛋白質三級結構的交互作用力類型中,下面那一個交互作用力的鍵結能力最強?(A) 氫鍵 (B) 離子交互作用力 (C) 雙硫鍵 (D) π-π 交互作用力
資訊推薦
1. As the air parcel being lifted, many important physical processes are involved. Thefollowing ques
23. The following is a C program code: Which one of the following statements is CORRECT?(A) When a=8
8. 圖(四)顯示小葉在紙上計算某九位數分別乘上2 、3的過程,且過程無計算錯誤。若此九位數的數字由三個2、三個3、三個5所組成,則關於此九位數的描述,下列何者正確? (A) 個位數字為2(B) 十位
22. 下圖結構開環後的 Fischer Projection 為那一個? (A) (B) (C) (D)
2. ______ is the practice of intentionally ending life to relieve pain and suffering.(A) Euthanasia
3. The insurance companies will ______ the accident victims.(A) emerge (B) preclude (C) compensate (
4. There are some medications that doctors can ______ to help people fight diseasesassociated with b
5. An experiment found cat owners typically can’t ______ between their cat’s smelland the odor of an
6. Scientists found that H1N1 is a _______ of viruses from pigs, birds and humans.(A) coordination (
7. Foot-and-mouth disease is an infectious and sometimes fatal viral disease that_____ cloven-hoofed
8. When the girls _____ a bear in the forest, they froze like statues, too scared tomove or call for
9. Humans, dogs, elephants, and dolphins are all _______, but birds, fish, andcrocodiles are not.(A)
10. A ______ animal kills and eats other animals.(A) predate (B) predefined (C) predatory (D) predic
11. After the _____ of COVID-19, people suffered from injustice and iniquityimposed on them by gover
12. Acid rain causes trees to die, reducing natural habitat for animals and resulting in______ to ne
13. You should call the _______ immediately if your dog vomits frequently orseveral times in a row.(
14. Animal ______ drive many animal behaviors, like hibernation and matingseasons.(A) instancy (B) i
15. Tommy has decided to _____ a career in physics and has set his mind onbecoming a professor.(A) p
16. If you are unable to _____ the cost of a vet appointment, you should phone yourpractice to ask f
17. The beer market currently faces its fifth consecutive year of overall volumelosses, and the sale
18. When an animal no longer exists on earth, it is classified as _____.(A) terminal (B) perpetual (
19. Most ______ bookings with vets can be made over the phone, although somepractices now have onlin
20. Dogs with separation _____ are unable to find comfort when they are left aloneor separated from
21. Your body holds about 60,000 miles of blood vessels. Along with your heart andother muscles, the
22. The three largest ______ components of pet food are protein, carbohydrate andfat.(A) anatomy (B)