问题 多项选择题

下列方式中,属于直接的股利分配性质的有()。

A.股票回购

B.股票合并

C.现金股利

D.股票股利

E.增资配股

答案

参考答案:C, D

填空题
Mrs. Black is sixty-nine years old. She only has a daughter named Sandra. ___小题1:__ Mrs. Black was very sad and lived in her house alone. Two years ago her daughter had a baby. The young woman was busy all the time and had no time to look after her son James. She asked her mother to live with them.
The old woman had to sell her house and moved there. ___小题2:___ And the family liked her.
Last autumn Mrs. Black went to do some shopping. A car hit her and her leg was hurt. She had to be in hospital for three months. ___小题3:____ At first her daughter was kind to her, but soon she began to be tired of(讨厌) her. The old woman wanted to leave, but she had no money to buy a house and nobody could take care of her. ____小题4:____
One morning Mrs. Black broke a plate. It made her daughter angry. She told James to buy a wooden(木制的) plate for his grandma. That afternoon James came back with two wooden plates. She was surprised and asked, “Why did you buy two plates, son?”
“One is for grandma,” answered the boy, “the other is for you! You will also have to use a wooden plate when you’re old, I think.”
___小题5:____. She cried for long. Now she is kind to her mother as she was before .
请根据材料内容,将下面A-E五个句子分别填入文中空缺处,使短文意思通顺,内容完整。
A. She couldn’t do anything after she came back.
B. Mr. Black died twelve years ago.
C. She didn’t know what to do.
D. The woman heard this and was sad.
E .She was strong and could do all the housework.
填空题

(方程式每空2分,其余每空1分,共21分。)氧化还原反应和离子反应是高一所学过的重要化学反应类型,仔细思考回答下列问题:

(Ⅰ)下列一组有水参与的反应:

①2Na + 2H2O =" 2NaOH" + H2

②2Na2O2 + 2H2O =" 4NaOH" + O2

③Na2O+ H2O ="2NaOH"

④3Fe+4H2O Fe3O4+4H2

⑤2H2O 2H2↑+ O2

⑥2F2 + 2H2O =" 4HF" + O2

(1)其中不属于氧化还原反应的是              (填编号)

(2)在这些氧化还原反应中,水只作氧化剂的反应是           (填编号)

水只作还原剂的反应是            (填编号)水既作氧化剂,又作还原剂是          (填编号)

水既不作氧化剂,又不作还原剂是          (填编号)

(3)根据你的理解,氧化还原反应的实质是(  )

A.分子中的原子重新组合

B.氧元素的得失

C.电子的得失或共用电子对的偏移

D.化合价的改变(4)请你运用所学知识分析3NO2+H2O = 2HNO3+NO是否属于氧化还原反应?        (填“是”或“不是”),若是,这个反应的氧化剂是       ,还原剂是          

(Ⅱ)写出下列反应的离子方程式:

①往氯化铁溶液加入铁粉:                                                

②过量二氧化碳通入澄清石灰水:                                            

③往氯化铝溶液中加入足量的NaOH溶液:                                         

(Ⅲ)写出下列反应的化学方程式:

①二氧化硫发生催化氧化反应:                                                  

②氯气与氢氧化钠溶液反应:                                                  

③铜片与稀硝酸的反应: