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【单选题】
白色固体 A 溶于加入盐酸有白色沉淀 B 生成。用过量 SnCl 2 溶液与 B 作用, B 最后转化为黑色的C。 B 溶于硝酸生成无色溶液,再加入过量 NaOH 溶液有黄色沉淀 D 析出。 D 不溶于氨水和 NaOH 溶液,但易溶于硝酸。用 HI 溶液处理 D 先有红色沉淀 E 生成, HI 溶液过量则沉淀消失得无色溶液。 请给出 A 、 B 、
C.
、
D.
和
E.
的化学式。
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参考答案：
举一反三
【单选题】Which of the following is NOT a factor that explains the rise of novels as a dominant literary genre during the Victorian age?
A.
The growth urban populations resulted in the appearance of a new reading public.
B.
The development of printing and paper making made books available to readers.
C.
Poetry and drama could not provide the industrial capitalists with recreation.
D.
Novels satirize individuals or institutions and advocate social reforms.
查看完整题目与答案
【单选题】关于土地增值税的表述中，正确的有( )。
A.
以分期收款方式转让房地产取得的收入为外币的，应按实际收款日或收款当月1日国家公布的市场汇率折合成人民币
B.
个人购入房地产再转让的，其在购入环节缴纳的契税，作为转让房地产有关的税金予以扣除
C.
取得土地使用权后未开发即进行转让的，在计算应纳土地增值税时，可以加计扣除费用
D.
转让旧房、旧建筑物的，不能提供已支付的地价款凭据的，按照该房产所坐落土地取得时的基准低价或标定低价来确定土地的扣除项目金额
E.
纳税人因隐瞒、虚报房地产成交价格等情形而按房地产评估价格计算征收土地增值税时所发生的评估费用，不得在计算土地增值税时扣除
查看完整题目与答案
【简答题】— 定义 名为 MyTime 的类,其中应有三个整型成员:时( hour ),分( minute ),秒( second ),为了保证数据的安全性,这三个成员变量应声明为私有。 为 MyTime 类定义构造方法,以方便创建对象时初始化成员变量 。再 定义 diaplay 方法,用于将时间信息打印出来。 — 为 MyTime 类添加以下 方法, 分别对时、分、秒进行加减 运算: addSecond ...
查看完整题目与答案
【单选题】冠心病的I期康复何时可开始：
A.
发病即刻
B.
发病2周以后
C.
病情稳定即刻
D.
病情稳定2周以后
E.
病情稳定1月以后
查看完整题目与答案
【单选题】The two-factor theory proposes that ________.
A.
within every human being, there exists a hierarchy of five needs and as each of these needs becomes substantially satisfied, the next one becomes dominant
B.
employees inherently dislike work and must therefore be directed or even coerced into performing it
C.
employees can view work as being as natural as rest or play, and therefore the average person can learn to accept, and even seek, responsibility
D.
the factors that lead to job satisfaction are separate and distinct from those that lead to job dissatisfaction
E.
achievement, power, and affiliation are three important needs that help explain motivation
查看完整题目与答案
【单选题】As a dominant factor in American life, American ______ was one of the most enduring shaping influences in American thought and American literature.
A.
Cosmopolitanism
B.
Puritanism
C.
Idealism
D.
Transcendentalism
查看完整题目与答案
【单选题】为了适应相应学科的发展及该类文献的分类,《中图法》对其中的哪个类目的次级类目展开时采用双子母形式?
A.
G
B.
R
C.
S
D.
T
查看完整题目与答案
【多选题】Which of the following statements regarding chronic bronchitis are TRUE:
A.
Chronic bronchitis is defined as persistent productive cough for at least 3 consecutive months in at least 2 consecutive years
B.
Cigarette smoking is the most important risk factor
C.
Air pollutants contribute to chronic bronchitis
D.
The dominant pathologic features are mucus hypersecretion and persistent inflammation
E.
Histologic examination demonstrates enlargement of mucous-secreting glands, goblet cell hyperplasia, chronic inflammation, and bronchiolar wall fibrosis
查看完整题目与答案
【单选题】为了保证类的成员变量的安全性，成员变量应该尽量被修饰为（）。
A.
private
B.
public
C.
static
D.
abstract
查看完整题目与答案
【单选题】As a dominant factor in American life, American ______ was one of the most enduring shaping influences in American thought and American literature.
A.
Cosmopolitan
B.
Puritanism
C.
Idealism
D.
Transcendentalism
查看完整题目与答案
相关题目：
【单选题】Which of the following is NOT a factor that explains the rise of novels as a dominant literary genre during the Victorian age?
A.
The growth urban populations resulted in the appearance of a new reading public.
B.
The development of printing and paper making made books available to readers.
C.
Poetry and drama could not provide the industrial capitalists with recreation.
D.
Novels satirize individuals or institutions and advocate social reforms.
查看完整题目与答案
【单选题】关于土地增值税的表述中，正确的有( )。
A.
以分期收款方式转让房地产取得的收入为外币的，应按实际收款日或收款当月1日国家公布的市场汇率折合成人民币
B.
个人购入房地产再转让的，其在购入环节缴纳的契税，作为转让房地产有关的税金予以扣除
C.
取得土地使用权后未开发即进行转让的，在计算应纳土地增值税时，可以加计扣除费用
D.
转让旧房、旧建筑物的，不能提供已支付的地价款凭据的，按照该房产所坐落土地取得时的基准低价或标定低价来确定土地的扣除项目金额
E.
纳税人因隐瞒、虚报房地产成交价格等情形而按房地产评估价格计算征收土地增值税时所发生的评估费用，不得在计算土地增值税时扣除
查看完整题目与答案
【简答题】— 定义 名为 MyTime 的类,其中应有三个整型成员:时( hour ),分( minute ),秒( second ),为了保证数据的安全性,这三个成员变量应声明为私有。 为 MyTime 类定义构造方法,以方便创建对象时初始化成员变量 。再 定义 diaplay 方法,用于将时间信息打印出来。 — 为 MyTime 类添加以下 方法, 分别对时、分、秒进行加减 运算: addSecond ...
查看完整题目与答案
【单选题】冠心病的I期康复何时可开始：
A.
发病即刻
B.
发病2周以后
C.
病情稳定即刻
D.
病情稳定2周以后
E.
病情稳定1月以后
查看完整题目与答案
【单选题】The two-factor theory proposes that ________.
A.
within every human being, there exists a hierarchy of five needs and as each of these needs becomes substantially satisfied, the next one becomes dominant
B.
employees inherently dislike work and must therefore be directed or even coerced into performing it
C.
employees can view work as being as natural as rest or play, and therefore the average person can learn to accept, and even seek, responsibility
D.
the factors that lead to job satisfaction are separate and distinct from those that lead to job dissatisfaction
E.
achievement, power, and affiliation are three important needs that help explain motivation
查看完整题目与答案
【单选题】As a dominant factor in American life, American ______ was one of the most enduring shaping influences in American thought and American literature.
A.
Cosmopolitanism
B.
Puritanism
C.
Idealism
D.
Transcendentalism
查看完整题目与答案
【单选题】为了适应相应学科的发展及该类文献的分类,《中图法》对其中的哪个类目的次级类目展开时采用双子母形式?
A.
G
B.
R
C.
S
D.
T
查看完整题目与答案
【多选题】Which of the following statements regarding chronic bronchitis are TRUE:
A.
Chronic bronchitis is defined as persistent productive cough for at least 3 consecutive months in at least 2 consecutive years
B.
Cigarette smoking is the most important risk factor
C.
Air pollutants contribute to chronic bronchitis
D.
The dominant pathologic features are mucus hypersecretion and persistent inflammation
E.
Histologic examination demonstrates enlargement of mucous-secreting glands, goblet cell hyperplasia, chronic inflammation, and bronchiolar wall fibrosis
查看完整题目与答案
【单选题】为了保证类的成员变量的安全性，成员变量应该尽量被修饰为（）。
A.
private
B.
public
C.
static
D.
abstract
查看完整题目与答案
【单选题】As a dominant factor in American life, American ______ was one of the most enduring shaping influences in American thought and American literature.
A.
Cosmopolitan
B.
Puritanism
C.
Idealism
D.
Transcendentalism
查看完整题目与答案
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