常温下,下列各组离子在特定溶液中一定能大量共存的是 [ ] A.pH=12的澄清

题型:选择题

问题:

常温下,下列各组离子在特定溶液中一定能大量共存的是 [ ]

A.pH=12的澄清的溶液中:K、Na、MnO4、SO42-

B.c(Al3+) =0.1 mol·L-1的溶液中:Na、Cl、HCO3、SO42-

C.甲基橙呈红色的溶液中:NH4、Ba2+、AlO2、Cl

D.加入少量铝粉后能产生氢气的溶液中:NH4、Fe2+、NO3、SO42-

考点:离子共存
题型:选择题

下列各句中,加点的成语使用不恰当的一项是(3分)(  )

A.高华治史的特长不在其获取史料的能力,而在其对史料解读时所显露出来的悟性。他能见微知著,通过细碎的史料洞彻历史的真相。

B.针对每年节节攀高的茅台酒价格,贵州茅台公司高层曾三令五申要求各地经销商保持冷静,不要将现存茅台酒束之高阁,等待高价出售。

C.领导干部学习应始终本着学无常师的态度,多方请教,不断学习,做到“专”与“博”结合,使知识结构更加合理,个人素质全面提高。

D.宋远方以深入浅出的语言,生动翔实的事例和鞭辟入里的分析,对大会报告进行了全面深刻的解读,对贯彻落实会议精神提出了要求。

题型:选择题

阅读理解。

     Outside our hotel in Ho Chi Minh City, Vietnam, a seemingly ancient woman waited beside

the door with her hand outstretched. Every day I put my hand in hers as our eyes met. She never

failed to return my smile, my grasp, and my greeting.

    On the last day of our visit, I found myself alone on a busy corner across the street from our

hotel. Bicycles and motorbikes rushed in front of me. As I hesitated on the sidewalk, I felt a hand

on my elbow and looked down to see the smile of my small beggar friend looking up at me. She

nodded her head toward the street, indicating that she would take me across. Together, we moved

slowly into the chaos.

    Then we moved on toward the sidewalk, where she pulled my face down to hers, kissed me on

both cheeks, and then left, still smiling and waving back to me.

Traveling in poorer nations, I have witnessed a variety of ways to deal with beggars. The most

common response of tourists faced with the poverty-stricken is to ignore them and focus their eyes

elsewhere. I have seen people push away an outstretched hand in angry annoyance. A few may drop

a few coins into the hand in a hurry, hoping that other ragged pursuers won't immediately appear on

the scene.

For many reasons, giving money is not the best response to an outstretched hand. Many world

travelers have discovered that the greatest gift they can give is their time and respect. Everyone needs

recognition, to be seen as worthy of being known, to feel appreciated and loved. And I believe that

everyone is worthy and worth knowing.

1. The woman beggars helped the author go across the busy street because __________.

A. the author gave her material assistance  

B. the author treated her kindly and friendly

C. the author would help her as a reward  

D. the author was a foreigner

2. From the story, what position of the beggars in the author's mind might be?

A. equal    

B. superior      

C. lower    

D. valuable

3. In common cases, people will do the following things to the beggars EXCEPT for ________.

A. pretending to see nothing            

B. handing out some money

C. refusing them angrily               

D. greeting them normally

4. According to the author, the most important things beggars really need are _________.

A. mercy and pity

B. money and food  

C. smile and greeting  

D. attention and respect

5. The purpose of the passage is to _________.

A. show how poor the beggars are in Vietnam

B. offer some advice on dealing with begging

C. express what we should offer the beggars

D. describe an experience with a beggar

题型:选择题

古代欧洲有一个地方:人们崇尚文化,眼界开阔,男性公民普遍参政,工商业比较发达,曾称霸地中海一时。该国是[ ]

A.斯巴达城邦    

B.雅典城邦

C.亚历山大帝国    

D.罗马帝国

题型:选择题

下列关于契约式合资结构的说法,正确的是( )。

A.投资各方的权利依照合作契约约定

B.投资各方依照股权比例分配收益

C.投资各方对企业的债务承担无限连带责任

D.投资各方按照出资比例承担企业的风险

题型:选择题

专业技术的特征包括()。

A.专业技术的获得无需条件

B.专业技术是人类征服自然和改造社会过程中所取得的智力成果

C.专业技术需要专门学习、训练、研究才能获得

D.专业技术是人类征服自然和改造社会运用的知识理论财富和技术资产。

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