問題詳情
(b) OF2
參考答案
答案:A
難度:簡單0.714286
統計:A(75),B(24),C(0),D(0),E(0)
內容推薦
- (10 pts) Define ‘empirical formula’ and ‘molecular formula’ of a compound.
- (10pts) Which charge(s) for the N2 molecule would give a bond order of 5?
- 設f (x)=7x6-50x5+6x4+4x3+25x2-30x+20,試求f (7)= (3)
- (5 pts) Of the following,which molecule or ion has the largest bond angle?【題組】(a)O3
- 下圖表示細胞內進行某種反應時,能量的轉變情形,據此資料,下列哪一項敘述是正確的(甲物質為反應物,乙物質為產物)? (A)此化學反應為一種放能反應 (B)反應前後所改變的能量相當於E(C)若
- 【題組】(e) 18
- (10pts) Why must all six atoms in C2H4 bein thesame plane?
- Part Short Passage Questions (3%) At the end of each year, many people feel goodwill toward othe
- 【題組】 (e) microwaves
- ◎在知識經濟社會,國家的經濟成長與研究和發展經費的投入、文化教育等因素密切相關。研究與發展經費(R&D)是反映一個國家科技實力的重要指標,而企業是科學研究發展的主題。請閱讀下列圖表,回答13~14題:
內容推薦
- (10pts) What are three-centered bonds?
- 已知A-a為完全顯性遺傳,B-b為半顯性遺傳,且A、B不位在同一對染色體上,親代為AaBb自交,可產生子代基因型有幾種?外表型有幾種? (A)9,(B)9,(C)6,(D)4,4。
- 阿發想買藍色與黑色兩種鋼筆,如果兩種鋼筆總共至多買 15 枝,而且藍色鋼筆的數目不超過黑色鋼筆數目的 2 倍,又藍色鋼筆最少買 6 枝、黑色鋼筆最少買 4 枝,有幾種可能的買法?(A) 6 種
- 【題組】 (c)NH2-
- 【題組】Why did the British and German soldiers sing patriotic songs?(A)To kill the long and boring t
- (15pts) Draw the following.【題組】(a). cw-hexene
- Americans ____ a very high percentage of the world's energy.(A)venture (B)launch (C)compile
- 【題組】(d) H2O
- 【題組】What happened in No Man's Land on Christmas Eve?(A)There was a lot of violent and bloody
- 【題組】(b(. cis-2,3-dichloro-2-pentene
- Afraid and disappointed, Serena ____ needed someone to give her a hand.(A)desperately(B)cautiousl
- 有一種電路保護裝置如【圖 50】所示,鐵芯左側線圈 L1 是由火線和中性線平行環繞而成。當右側線圈 L2 中產生電流時,電流經放大器放大後,使電磁鐵吸起鐵質開關 K,從而切斷使用中的電路。下列敘
- 【題組】(e)C2H2
- 若α,β,γ為x3-2x2+3x-4=0的三個根,試求:【題組】(a) α2+β2+γ2= (5)
- (5 pts) Which one of the following types of radiation has the shortest wavelength,the greatest en
- Improving medical science has ____ the need for many patients to spendlong periods of time in hos
- (5 pts) How many electrons are involved in pi bonding in benzene,C6H6?【題組】(a) 12
- II. Level 4:15%The haunted castle is ________ into a hotel and now becomes one of the most popul
- To get admitted into this university, you need to fill out the ____ form inChinese and in English
- 【題組】(b) (α+β) (β+γ) (γ+α)= (6)
- The scientist was awarded a Nobel Prize for his _____ achievement in the field of biotechnology.
- The editor of Apple Daily considers the banning of its newspaper in schools a _______ of media f
- The movie Avatar achieved _____ box-office success, selling more than $73 million dollars in its
- To avoid discrimination, the law requires companies to hire people _____ sex or race.(A) as a re
- Dubai once stunned the world with its rapid rise to ______, but the nation is now faced with deb