叠加原理不适用于（）Ａ、含有电阻的电路Ｂ、含有空心电感的交流电路Ｃ、含有二极管的电路

胆囊造影俯卧摄影时，应取的体位是（）

A.左侧抬高5°～10°

B.左侧抬高20°～30°

C.右侧抬高5°～10°

D.右侧抬高20°～30°

E.平卧位

人体内静脉血变为动脉血，是由血液流经下列哪一部分毛细血管实现的[ ]

A．皮肤    

B．口腔壁    

C．肺泡壁      

D．组织细胞间

简述对机械密封的选用的基本要求？

【案例二】：

一般资料：求助者，女性，33岁，公司职员。

案例介绍：求助者结婚十年，因病一直没有生育。丈夫以前对有没有孩子无所谓，现在又改变了态度，说很想有自己的孩子。随年龄的增大求助者的压力很大，担心夫妻感情受到影响。四个月前发现丈夫网恋，为这事和丈夫吵过好多次，接受不了这个现实，很痛苦，主动前来咨询。

下面是心理咨询师与求助者的一段咨询对话：

心理咨询师：你需要我帮你解决什么心理问题呢？

求助者：我现在不知道该怎么办，这种事情也不是对谁都能说的，你能告诉我该怎么办吗？

心理咨询师：你想怎么办呢？

求助者：我不知道，所以来咨询。

心理咨询师：那你现在想想可以吗？

求助者：我想了，但我想不出来。

心理咨询师：那你能详细说说你都想了什么吗？

求助者：他和我结婚的时候一无所有，我为婚姻付出了太多，我父母为我们买了房子，他们自己还住在老房子里。我因病不能生育，无法满足丈夫要孩子的需求。现在丈夫网恋。还不听我的劝阻，让我非常痛苦，对未来缺乏信心。朋友劝我，男人都这样，离婚不一定就好，还会有很多新的矛盾，还是原配的好。我真不知道怎么办才好，我现在都快崩溃了，觉得活着一点意思都没有，我吃不下、睡不着，工作也没精打采，什么事也不想干。我今天来就是想让你告诉

诉我到底该怎么办？

心理咨询师：我很理解你的痛苦，你现在是对离不离婚无法决断，对吗？

求助者：是的，我如果选择不离婚，可我为什么要宽容他呢？是他犯的错误。唉，如果离婚，我又害怕过得还不如现在。

心理咨询师：你目前的婚姻，就像住在一座危房里，你怎么办？

求助者：（沉默）危房？我可以加固、改造，还可以就这么忍着，或者搬走。

心理咨询师：是的，那你作何选择？

求助者：我，我可能会根据哪个有利选哪个。

心理咨询师：对于你刚才的坦率，我很高兴。

求助者：（点点头）

心理咨询师：你现在的冲突，就是因为有好几种选择，每种选择各有利弊，你不是不知道怎么做，你是选择哪个都只要它的利，不要它的弊，是吗？

求助者：好像是这样了，我明白了，您的意思是说我什么都想得到？

心理咨询师：你觉得呢？理性的做法是：接纳我们不能改变的，改变我们可以改变的。

求助者：我懂了，我知道该怎么办了，……您为我解决了一个大难题，以后您就是我的知

心朋友了，有什么想不明白的问题我就给您打电话。

心理咨询师：好吧，我的电话号码是……

该求助者的心理冲突属于（）。

A.与现实有关

B.常形

C.与现实无关

D.变形

When Liam McGee departed as president of Bank of America in August, his explanation was surprisingly straight up. Rather than cloaking his exit in the usual vague excuses, he came right out and said he was leaving "to pursue my goal of running a company. " Broadcasting his ambition was "very much my decision," McGee says. Within two weeks, he was talking for the first time with the board of Hartford Financial Services Group, which named him CEO and chairman on September 29.
McGee says leaving without a position lined up gave him time to reflect on what kind of company he wanted to run. It also sent a clear message to the outside world about his aspirations. And McGee isn’t alone. In recent weeks the No. 2 executives at Avon and American Express quit with the explanation that they were looking for a CEO post. As boards scrutinize succession plans in response to shareholder pressure, executives who don’t get the nod also may wish to move on. A turbulent business environment also has senior managers cautious of letting vague pronouncements cloud their reputations.
As the first signs of recovery begin to take hold, deputy chiefs may be more willing to make the jump without a net. In the third quarter, CEO turnover was down 23% from a year ago as nervous boards stuck with the leaders they had, according to Liberum Research. As the economy picks up, opportunities will abound for aspiring leaders.
The decision to quit a senior position to look for a better one is unconventional. For years executives and headhunters have adhered to the rule that the most attractive CEO candidates are the ones who must be poached. Says Kom/Ferry senior partner Dennis Carey: "I can’t think of a single search I’ve done where a board has not instructed me to look at sitting CEOs first. "
Those who jumped without a job haven’t always landed in top positions quickly. Ellen Marram quit as chief of Tropicana a decade age, saying she wanted to be a CEO. It was a year before she became head of a tiny Internet-based commodities exchange. Robert Willumstad left Cifigroup in 2005 with ambitions to be a CEO. He finally took that post at a major financial institution three years later.
Many recruiters say the old disgrace is fading for top performers. The financial crisis has made it more acceptable to be between jobs or to leave a bad one. "The traditional rule was it’s safer to stay where you are, but that’s been fundamentally inverted," says one headhunter. "The people who’ve been hurt the worst are those who’ve stayed too long. \