問題詳情
34．根据陈述的知识，类推得出的结论正确的是
(A)镁条在空气中燃烧生成的氧化物是MgO，则钠在空气中燃烧生成的氧化物是Na2O
(B)乙烯可使酸性高锰酸钾溶液褪色，则丙烯也可以使其褪色
(C)CO2与SiO2化学式相似，则CO2与SiO2的物理性质也相似
(D)金刚石的硬度大，则C60的硬度也大
(A)镁条在空气中燃烧生成的氧化物是MgO，则钠在空气中燃烧生成的氧化物是Na2O
(B)乙烯可使酸性高锰酸钾溶液褪色，则丙烯也可以使其褪色
(C)CO2与SiO2化学式相似，则CO2与SiO2的物理性质也相似
(D)金刚石的硬度大，则C60的硬度也大
參考答案
答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
內容推薦
- Which of the following would you most probably read if you want to get information from the
- 以下性別工作平等法有關哺乳時間之規定，何者正確？(A)哺乳時間不視為工作時間(B)適用於子女未滿十八個月需受僱者親自哺乳者(C)雇主應於固定休息時間之外給予哺乳時間一次，每次以三十分鐘為度(
- ---Have you got any idea for the summer vacation?---I don’t mind where we get_________ there’s s
- ---What fruit is in season now?---Pears and apples, _________.(A) I know (B) I think (C) I see (
- 33．氮化铝（AlN，Al和N的相对原子质量分别为27和14）广泛应用于电子、陶瓷等工业领域。在一定条件下，AlN可通过反应Al2O3＋＋N2＋3C 2AlN＋3CO合成。下列叙述正确的是(A)上述反
- The underlined part “the colours turned the customers off”(in Para. 3 ) means that the colou
- It is possible that most of the readers of the four magazines are ______.(A) men (B) women (
- 32．用石灰水、小苏打、淀粉和食醋等不能完成的实验是(A)碘盐中碘的检验 (B)暖瓶中水垢的除去(C)食盐和纯碱的鉴别 (D)鸡蛋壳主要成分的检验
- For lovers of the arts, Apollo is a truly necessary magazine. Covering the ages and the great civili
- Shopping is not as simple as you may think! There are all sorts of tricks at play each time we reach
內容推薦
- The weather was_________ cold that I didn’t like to leave myroom.(A) really (B) such (C) too (D)
- The purpose of writing these four texts is to ______.(A) tell the readers the latest news(B)
- 27．根据表1信息和，判断以下叙述正确的是表部分短周期元素的原子半径及主要化合价 (A)氢化物的沸点为H2T＜H2R (B)单质与稀盐酸反应的速率为L＜Q (C)M与T形成的化合物具有两
- 35．下列有关Cl、N、S等非金属元素化合物的说法正确的是(A)漂白粉的成分为次氯酸钙(B)实验室可用浓硫酸干燥氨气(C)实验室可用NaOH溶液处理NO2和HCl废气(D)Al2(SO4)3可除去碱性
- Let’s learn to use the problem we are facing_________ astepping-stone to future success.(A) to (
- The English spoken in the United States is only slightly differentfrom_________ spoken in Englan
- Which of the following would be the best title for this text?(A) Choice of Good Products (B)
- 36．对于反应2SO2(g)＋O2(g) 2SO3(g)，能增大正反应速率的措施是(A)通入大量O (B)增大窗口容积(C)移去部分SO (D)降低体系温度
- The lawyer seldom wears anything other than a suit_________ theseason.(A) whatever (B) wherever
- After studying in a medical college for five years, Jane_________her job as a doctor in the coun
- 28．下列关于有机物的说法正确的是(A)乙醇、乙烷和乙酸都可以与钠反应生成氢气(B)75%（体积分数）的乙醇溶液常用于医疗消毒(C)苯和乙烯都可使溴的四氯化碳溶液褪色(D)石油分馏可获得乙酸、苯及其衍
- 37．核酸是细胞内携带遗传信息的物质，以下关于DNA和RNA特点的比较，叙述正确的是(A)在细胞内存在的主要部位相同 (B)构成的五碳糖不同(C)核苷酸之间的连接方式不同 (D)构成的碱
- I like getting up very early in summer. The morning air is sogood_________.(A) to be breathed (B
- Pulling heavy suitcases all day in the summer is hard work, especially when you’re a thin 14-year-ol
- ---Sorry, I made a mistake again.---_________. Practice more and you’ll succeed.(A) Never mind (
- 29．下列各组离子一定能大量共存的是(A)在含有大量［Al(OH)4］－的溶液中：NH4＋、Na＋、Cl－、H＋(B)在强碱溶液中：Na＋、K＋、CO32－、NO3－(C)在pH＝12的溶液中：NH4
- 38．细胞内各细胞具有一定的结构和功能，对图8中结构①的叙述，正确的是 (A)在不同植物细胞内其数量基本相同 (B)是植物合成蛋白质的主要细胞器 (C)是植物进行光合作用产生有机物的细胞器 (D)含有
- --- Have you known Dr. Jackson for a long time?---Yes, since she_________ the Chinese Society.(A
- What does the father's advice imply?(A) It is wrong to give more pay to the passengers.
- After the birth of my second child, I got a job at a restaurant. Having worked with an experienced
- 30．下列反应的离子方程式正确的是(A)钠与水的反应：Na＋H2O＝Na＋＋OH－＋H2↑(B)氯气与水反应：Cl2＋H2O＝2H＋＋Cl－＋ClO－(C)氢氧化铝中和胃酸：Al(OH)3＋3H＋＝A
- 39．取少量酵母菌液放入血球计数板直接记数，测得的数目是(A)活细胞数 (B)死细胞数(C)菌落数 (D)细胞总数
- You’re driving too fast. Can you drive_________?(A) more slowly a bit (B) slowly a bit more(C) a
- 40．下列过程存在无氧唿吸的是(A)植物叶片在光下放出O2 (B)动物细胞内的糖分解为H2O和CO2(C)酵母细胞不产酒精的唿吸过程 (D)苹果贮藏期间果肉积累酒精
- The wet weather will continue tomorrow when a cold front_________ to arrive.(A) is expected (B)