问题 选择题

可逆反应2SO2(g)+O2(g)  2SO3(g),在体积为2L的密闭容器中进行,如果SO2在某时刻的物质的量为4mol,2min后变为3.6mol,则用O2的浓度变化表示这段时间的反应速率为(   )mol·(L·min)1

A.0.05

B.0.2

C.0.1

D.0.4

答案

答案:A

题目分析:二氧化硫浓度变化为0.2mol/L,二氧化硫速率为0.1mol/( L·min),速率比等于化学计量数之比,所以O2速率为0.05mol/( L·min)。

点评:化学反应速率之比等于化学计量数比。

单项选择题

With the spread of inter-active electronic media a man alone in his own home will never have been so well placed to fill the inexplicable mental space between cradle and crematorium. So I suspect that books will be pushed more and more into those moments of travel or difficult defecation (1) people still don’t quite know what to do with.

When people do read, I think they’ll want to feel they are reading literature, or (2) something serious. (3) you’re going to find fewer books presenting themselves as no- nonsense and (4) assuming literary pretensions and being packaged as works of art. We can expect an extraordinary variety of genre, but with an underlying (5) of sentiment and vision.

Translators can only (6) from this desire for the presumably sophisticated. We can look forward to lots of difficult names and fantastic stories of foreign parts enthusiastically (7) by the overall worship of the "global village" Much of this will be awful and some wonderful, (8) don’t expect the press or the organizers of prizes to offer you much help in making the appropriate distinctions. They will be chiefly (9) in creating celebrity, the greatest enemy of discrimination, but a good prop for the (10) consumer.

Every ethnic grouping over the world will have to be seen to have a great writer--a phenomenon that will (11) a new kind of provincialism, more chronological than geographic, (12) only the strictly contemporary is talked about and (13) . Universities, including Cambridge, will include (14) their literature syllabus novels written only last year. (15) occasional exhumation for the Nobel, the achievements of ten or only five years ago will be largely forgotten.

In short, you can’t go too far wrong when predicting more of the same. But there is a (16) side to this--the inevitable reaction against it. The practical things I would like to see happen--publishers seeking less to (17) celebrity through extravagant advertising, (18) and magazines (19) space to reflective pieces--are rather more improbable than the Second Coming (耶稣复临). But dullness never quite darkens the whole planet. In their own idiosyncratic fashion a few writers will (20) be looking for new departures.

14()

A.at

B.in

C.on

D.for

多项选择题

案例二


求助者一般资料:王某,女性,30岁,已婚,公司会计。
案例介绍:求助者结婚五年,婚后求助者就学着做各式各样的菜,每天都会做几道菜等老公一起吃,可是老公经常有事情不能回来同吃,因此她觉得很失落,没有成就感,感觉很无聊,慢慢的就不喜欢做菜了。求助者对现状很不满意,自己有一个可爱的女儿,但是她却感觉不到女儿给自己带来的乐趣。求助者现在很苦恼,有时候觉得活着很没有意思,想自杀。
心理咨询师了解到的情况:求助者衣着得体,谈吐不凡,小时候家里就她一个女儿,因此父母对她是娇生惯养,求助者意志薄弱,不善处理人际关系,在困难面前表现得比较软弱。
以下是求助者与咨询师谈话的片段:
心理咨询师:您失落的原因是什么
求助者:在家里很无聊,我没有一点成就感。
心理咨询师:您说老公经常不回来吃饭,自己感觉做的菜没有人吃,因此感觉无聊,是这样吗
求助者:是的,我不喜欢丈夫晚归。
心理咨询师:假设现在您的家里停水了,连刷牙、洗脸的水都没有了,您会怎么办
求助者:很简单,那就不刷牙、不洗脸了。
心理咨询师:您是这么想的,那别人会不会去买水呢
求助者:是的,会有,那么麻烦的话我宁愿不做。
心理咨询师:您想改变这种状态,那么您都做了什么呢
求助者:(……沉默)我明白您的意思了,可是我现在连做饭的动力都没有了,还能怎么办好多朋友都说要做贤妻良母,我现在觉得很可笑……
心理咨询师:您好像对什么都失去兴趣了,您对自己有什么想法
求助者:我是一个没有任何价值的人。
心理咨询师:您可以说自己做饭没有价值,但不能说您做为母亲、作为妻子没有价值。
求助者:(沉默)……

应对阻抗的主要目的包括( )。

A.解释阻抗

B.了解阻抗产生的原因

C.突破阻抗

D.帮助求助者解决躯体问题