問題詳情
4. 溴的原子序為 35,已知溴存在兩個同位素,其百分率幾近相同,而溴的原子量為 80,則溴的兩個同位素中的中子數分別為何?
(A) 43和 45
(B) 79和 81
(C) 42和44
(D) 44和 46
(E) 45和 47
(A) 43和 45
(B) 79和 81
(C) 42和44
(D) 44和 46
(E) 45和 47
參考答案
答案:D
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
內容推薦
- 他的教練和家人對於他的抱負一無所知。(Neither…)(4分)
- 14 下列何種情況下,投資者應拒絕投資計畫之執行?(A)淨現值大於零 (B)獲利力指數大於 1(C)折現收回期間短於投資計畫年限 (D)投資報酬率小於必要投資報酬率
- 【題組】What is TRUE about the statue David and the ceiling of the Sistine Chapel?(A) Both of them t
- 【題組】⑶若仁愛公司採用相互分攤法(reciprocal method)分攤服務部門成本。計算丙、丁部門應分攤之服務部門成本。(6 分)
- To expand the business to the European market, we need to hire someone who is c______e of transl
- 閱讀之於心靈正如運動之於身體。(3分)
- 13 甲公司 X1 年銷貨收入為$1,000,000,變動製造成本$300,000,固定製造成本$200,000,變動營業費用$150,000,固定營業費用$100,000。預估 X2 年銷貨收入與
- 【題組】When was the work on the statue David first started?(A) 15(B) 1500. (C) 14(D) 14
- 【題組】⑵若仁愛公司採用逐步分攤法(step-down method)分攤服務部門成本。計算丙、丁部門應分攤之服務部門成本(假設先分攤甲部門之成本)。(6 分)
- After constantly taking care of her chronically sick child in the hospital, the young mother’s h
內容推薦
- 15 甲公司擬投資購買設備,估計耐用年限 5 年,無殘值,採直線法提列折舊。該設備每年年底可增加淨現金流入$80,000。若此投資的內部報酬率為 10%,資金成本率為 13%(3%,5 期之年金現值因
- V. 篇章結構: (10%) Nexttime you buy an item, look at it carefully and see if you can see thewords
- The child was banned from watching TV as a p______t for cheating in the exam.
- 【題組】(A) who are (B) whoever (C) having (D) to be
- Whether to build a new nuclear power plant or not has long been a matter for d_____e over the ye
- 16 某餐廳為搭配套餐,過去都是以每份$25 向外購買水果冰淇淋,每月購買 6,000 份,由於供應商打算在下個月漲價至每份$40,餐廳考慮自行製造。若自行製造,每份水果冰淇淋需投入之變動成本為$26
- 甲公司因違規棄置廢棄物,遭主管機關依廢棄物清理法之規定裁處罰鍰處分。甲公司認為該處分有明顯重大瑕疵而不服,【題組】一、試問其應如何尋求救濟?請詳述各種可能之情況,並分析其法律上之利弊。(25 分)
- 【題組】(A) where (B) in that (C) which (D) that
- 17 甲超商公司考慮以剩餘利益或投資報酬率評估各投資中心績效,此二績效評估指標的計算皆同時用到的資訊為何?(A)智慧資本 (B)投入資本 (C)資金成本 (D)現金流量
- 設地球半徑為R,地表處重力加速度的大小為g,則物體置於距離地表為2R處的重力加速度的大小為多少? (A) g (B) g (C) 4 g (D) 9 g
- 【題組】(A) took (B) rushed (C) held (D) arrived
- 18 甲公司經營旅館,X1 年資產總額$9,100,000,流動負債$2,340,000,有效稅率 20%,營業收入$7,760,000,營業成本$2,560,000,加權平均資金成本 9%,甲公司之
- 【題組】(A) retires (B) retiring (C) retired (D) to retire
- (B) Is cyberspace an ideal place to find love? The answers you will get might differ fromperson to p
- 【題組】(A) being published (B) have published (C) has been published(D) had been published
- 【題組】(A) get (B) to get (C) getting (D) got
- 【題組】(A) toward (B) beneath (C) over (D) into
- 【題組】(A) Without (B) In spite of (C) According to (D) Following
- 【題組】(A) how others see them (B) how others to see them(C) how do others see them (D) others how
- 【題組】(A) Both…and…(B) Not… but… (C) Either… or…(D) Neither… nor…
- 【題組】(A) to try (B) trying (C) tried (D) being
- 【題組】(A) do (B) did (C) was (D) has
- All her life, Orchid has been dreaming of a white Christmas, with snow falling in____ from the s
- 【題組】(A) on (B) to (C) of (D) for
- 【題組】(A) wait (B) to wait (C) waited (D) waiting