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【简答题】
（1）将2.0 mol/L CuSO 4 溶液和1.0 mol/L H 2 SO 4 溶液等体积混合（假设混合前后溶液体积不发生变化），所得混合液中C(CuSO 4 )= mol/L，C(SO 4 2 － )= mol/L。 （2）往100 mL 2 mol/L 的AlCl 3 溶液中逐滴加入 NaOH 溶液 100 mL 时，产生沉淀为7.8 g。试求所加 NaOH 溶液的物质的量浓度。
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参考答案：
举一反三
【单选题】人员访谈的优点是()。
A.
可以进行现场解释、澄清与核实
B.
费用低
C.
数据收集速度快
D.
实施和监督容易
查看完整题目与答案
【单选题】个人.深度访谈的优势是( )
A.
消除了群体压力的影响，因此每个被调查者都会提供更诚实的信息
B.
访谈时间较短
C.
对被调查者的甄选过程没有焦点小组访谈严格
D.
访谈员的效率更高
查看完整题目与答案
【单选题】man/mæn/
A.
n.支付,支付的款项
B.
n.农民,农夫;农场主
C.
n.男人;人;人类
D.
n.效用,有用,实用
查看完整题目与答案
【单选题】听力原文：M: I wonder if I could borrow your electronic dictionary, please? W: You certainly could if I had one, but I gave my old one to my brother when he entered high school, and I have not bought a new...
A.
She has bought a new one.
B.
Her brother has just given her one.
C.
She has only an old one,
D.
She has none at present.
查看完整题目与答案
【单选题】以下属于 访谈调查的优点是
A.
花费时间多
B.
使用较复杂的访谈提纲
C.
不受人员限制
D.
容易进行深入调查
查看完整题目与答案
【简答题】n. 农夫,农场主
查看完整题目与答案
【单选题】旅游企业多采用人员访谈方法进行调研的优点是( )
A.
被调研者所答可能是调研者所期望的回答而非其真实想法
B.
被调研者的时间难以约定
C.
可以观察被调研者的反应
D.
调研人员本身可能具有的偏见
查看完整题目与答案
【单选题】个人.深度访谈的优势是( )
A.
消除了群体压力的影响，因此每个被调查者都会提供更诚实的信息
B.
访谈时间较长
C.
对被调查者的甄选过程没有焦点小组访谈严格
D.
访谈员的效率更高
查看完整题目与答案
【单选题】访谈法是由调查员对调查者逐个访问，这种调查方法的优点是
A.
节约经费和时间
B.
具有更好的隐匿性
C.
几乎不存在调查员个人素质对调查结果的影响
D.
可以控制答卷环境
E.
调查范围广
查看完整题目与答案
【单选题】第二节 完形填空 阅读下面短文，从短文后所给各题的四个选项（
A.
B.
C和D）中选出能填入相应空白处的最佳选项，并在答题卡1上将该项涂黑。 My father believed that there were mysterious forces（神秘的力量）at work in the world. One day, he was lecturing me on these mysterious forces (36) suddenly the door opened, and a woman entered,(37) two geese. She smiled (38) and looked frightened. 'Yusef , I have a very (39) problem. These dead geese, they keep shrieking(尖声叫 )insuch a sad voice. . . ' (40) hearing this, my father turned pale. '(41)dead geese don' t shriek,' my mothercut in. 'You' II hear for yourself ,'replied the woman. It is impossible t0 (42) what I heard. Myhands grew (43 and I wanted to run from the room. Father was no less (44 ) than I was. He jumped away from the table. ' Yusef ,what shall I do?'the woman cried. '(45)? I' m a poor woman. Two geese! They (46) me a fortune! ' Father did not know what to answer. (47)face was growing sharper and more (48 ) . 'I want to hear it again ,'she said. And so for the second and the third time, the shrieks were (49).Nobody said anything. The woman asked ,'Well ,l didn' t (50) it, did I?' Suddenly my mother laughed. 'Did you (51 the windpipes(气管)?'my mother asked. ' The windpipes? No. . . ' ' Let me (52) ,'said Mother. She took hold of one of the geese, and pulled out the windpipe She did the same with the other one. I was surprised by my mother' s (53) . 'Now, try it again. 'I was (54) to hear the geese shriek, but they were dead silent. 'There is always (55). Dead geese don't shriek,'said my mother. 'Now go home and cook them for the meal. They won ' t make a sound in your pot. ' 36. [A]when [B]while [C]then [D]later
查看完整题目与答案
相关题目：
【单选题】人员访谈的优点是()。
A.
可以进行现场解释、澄清与核实
B.
费用低
C.
数据收集速度快
D.
实施和监督容易
查看完整题目与答案
【单选题】个人.深度访谈的优势是( )
A.
消除了群体压力的影响，因此每个被调查者都会提供更诚实的信息
B.
访谈时间较短
C.
对被调查者的甄选过程没有焦点小组访谈严格
D.
访谈员的效率更高
查看完整题目与答案
【单选题】man/mæn/
A.
n.支付,支付的款项
B.
n.农民,农夫;农场主
C.
n.男人;人;人类
D.
n.效用,有用,实用
查看完整题目与答案
【单选题】听力原文：M: I wonder if I could borrow your electronic dictionary, please? W: You certainly could if I had one, but I gave my old one to my brother when he entered high school, and I have not bought a new...
A.
She has bought a new one.
B.
Her brother has just given her one.
C.
She has only an old one,
D.
She has none at present.
查看完整题目与答案
【单选题】以下属于 访谈调查的优点是
A.
花费时间多
B.
使用较复杂的访谈提纲
C.
不受人员限制
D.
容易进行深入调查
查看完整题目与答案
【简答题】n. 农夫,农场主
查看完整题目与答案
【单选题】旅游企业多采用人员访谈方法进行调研的优点是( )
A.
被调研者所答可能是调研者所期望的回答而非其真实想法
B.
被调研者的时间难以约定
C.
可以观察被调研者的反应
D.
调研人员本身可能具有的偏见
查看完整题目与答案
【单选题】个人.深度访谈的优势是( )
A.
消除了群体压力的影响，因此每个被调查者都会提供更诚实的信息
B.
访谈时间较长
C.
对被调查者的甄选过程没有焦点小组访谈严格
D.
访谈员的效率更高
查看完整题目与答案
【单选题】访谈法是由调查员对调查者逐个访问，这种调查方法的优点是
A.
节约经费和时间
B.
具有更好的隐匿性
C.
几乎不存在调查员个人素质对调查结果的影响
D.
可以控制答卷环境
E.
调查范围广
查看完整题目与答案
【单选题】第二节 完形填空 阅读下面短文，从短文后所给各题的四个选项（
A.
B.
C和D）中选出能填入相应空白处的最佳选项，并在答题卡1上将该项涂黑。 My father believed that there were mysterious forces（神秘的力量）at work in the world. One day, he was lecturing me on these mysterious forces (36) suddenly the door opened, and a woman entered,(37) two geese. She smiled (38) and looked frightened. 'Yusef , I have a very (39) problem. These dead geese, they keep shrieking(尖声叫 )insuch a sad voice. . . ' (40) hearing this, my father turned pale. '(41)dead geese don' t shriek,' my mothercut in. 'You' II hear for yourself ,'replied the woman. It is impossible t0 (42) what I heard. Myhands grew (43 and I wanted to run from the room. Father was no less (44 ) than I was. He jumped away from the table. ' Yusef ,what shall I do?'the woman cried. '(45)? I' m a poor woman. Two geese! They (46) me a fortune! ' Father did not know what to answer. (47)face was growing sharper and more (48 ) . 'I want to hear it again ,'she said. And so for the second and the third time, the shrieks were (49).Nobody said anything. The woman asked ,'Well ,l didn' t (50) it, did I?' Suddenly my mother laughed. 'Did you (51 the windpipes(气管)?'my mother asked. ' The windpipes? No. . . ' ' Let me (52) ,'said Mother. She took hold of one of the geese, and pulled out the windpipe She did the same with the other one. I was surprised by my mother' s (53) . 'Now, try it again. 'I was (54) to hear the geese shriek, but they were dead silent. 'There is always (55). Dead geese don't shriek,'said my mother. 'Now go home and cook them for the meal. They won ' t make a sound in your pot. ' 36. [A]when [B]while [C]then [D]later
查看完整题目与答案
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