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患者，女性，34岁，无明显诱因出现左下腹部疼痛，伴恶心呕吐。无停经史。查体：急症面容，脸色苍白，血压110／70mmHg，下腹有压痛和反跳痛，移动性浊音(一)，体温38．5℃，血HCG正常，血白细胞升高。
根据以上病史及检查结果，应首先考虑该患者可能是什么病A.黄体破裂
B.阑尾炎
C.卵巢囊肿蒂扭转
D.宫外孕
E.盆腔积液
经阴道超声检查，于左下腹见50mm×55mm类圆形囊性为主的混合性肿块，边界尚清晰，被膜较厚，一侧囊肿壁旁可见高回声光团伴声影，囊性部分内有密集细小点状回声飘动，被膜周围可见细小低回声暗带，请问该患者最可能疾病是A.肠炎
B.阑尾炎
C.卵巢囊肿蒂扭转
D.宫外孕
E.卵巢囊性畸胎瘤蒂扭转
对于卵巢囊性畸胎瘤的临床和声像图表现，下列哪一项是错误的A.最常见于青年女性
B.是常见的卵巢肿瘤
C.也称皮样囊肿
D.后方无声影或声衰减
E.可见脂一液平面
该患者手术后发现，于脐周左侧腹部又发现两个卵巢囊性畸胎瘤，请问超声误诊的主要原因是A.操作者检查不细致
B.患者疼痛不配合
C.新发现的囊性畸胎瘤较小
D.新发现的囊性畸胎瘤回声不典型
E.经阴道超声探头频率较高，探查深度不够
请帮忙给出每个问题的正确答案和分析，谢谢！

A.5℃，血HCG正常，血白细胞升高。
根据以上病史及检查结果，应首先考虑该患者可能是什么病A.黄体破裂
B.阑尾炎
C.卵巢囊肿蒂扭转
D.宫外孕
E.盆腔积液
经阴道超声检查，于左下腹见50mm×55mm类圆形囊性为主的混合性肿块，边界尚清晰，被膜较厚，一侧囊肿壁旁可见高回声光团伴声影，囊性部分内有密集细小点状回声飘动，被膜周围可见细小低回声暗带，请问该患者最可能疾病是A.肠炎
B.阑尾炎
C.卵巢囊肿蒂扭转
D.宫外孕
E.卵巢囊性畸胎瘤蒂扭转
对于卵巢囊性畸胎瘤的临床和声像图表现，下列哪一项是错误的A.最常见于青年女性
B.是常见的卵巢肿瘤
C.也称皮样囊肿
D.后方无声影或声衰减
E.可见脂一液平面
该患者手术后发现，于脐周左侧腹部又发现两个卵巢囊性畸胎瘤，请问超声误诊的主要原因是A.操作者检查不细致
B.患者疼痛不配合
C.新发现的囊性畸胎瘤较小
D.新发现的囊性畸胎瘤回声不典型
E.经阴道超声探头频率较高，探查深度不够

【参考答案】

问题 1 答案解析：C
对于育龄妇女出、现左下腹疼痛，首先要考虑黄体破裂、官外孕、卵巢囊肿蒂扭转等，而黄体破裂、......

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This scenario summarises the development of a company called Rock Bottom through three phases, from its founding in 1965 to 2008 when it ceased trading.Phase 1 (1965–1988)In 1965 customers usually purchased branded electrical goods, largely produced by well-established domestic companies, from general stores that stocked a wide range of household products. However, in that year, a recent university graduate, Rick Hein, established his first shop specialising solely in the sale of electrical goods. In contrast to the general stores, Rick Hein’s shop predominantly sold imported Japanese products which were smaller, more reliable and more sophisticated than the products of domestic competitors. Rick Hein quickly established a chain of shops, staffed by young people who understood the capabilities of the products they were selling. He backed this up with national advertising in the press, an innovation at the time for such a specialist shop. He branded his shops as ‘Rock Bottom’, a name which specifically referred to his cheap prices, but also alluded to the growing importance ofrock music and its influence on product sales. In 1969, 80% of sales were of music centres, turntables, amplifiers and speakers, bought by the newly affluent young. Rock Bottom began increasingly to specialise in selling audio equipment.Hein also developed a high public profilE.He dressed unconventionally and performed a number of outrageous stunts that publicised his company. He also encouraged the managers of his stores to be equally outrageous. He rewarded their individuality with high salaries, generous bonus schemes and autonomy. Many of the shops were extremely successful, making their managers (and some of their staff) relatively wealthy peoplE.However, by 1980 the profitability of the Rock Bottom shops began to decline significantly. Direct competitors using a similar approach had emerged, including specialist sections in the large general stores that had initially failed to react to the challenge of Rock Bottom. The buying public now expected its electrical products to be cheap and reliablE.Hein himself became less flamboyant and toned down his appearance and actions to satisfy the banks who were becoming an increasingly important source of the finance required to expand and support his chain of shops.Phase 2 (1989–2002)In 1988 Hein considered changing the Rock Bottom shops into a franchise, inviting managers to buy their own shops (which at this time were still profitable) and pursuing expansion though opening new shops with franchisees from outside the company. However, instead, he floated the company on the country’s stock exchangE.He used some of the capital raised to expand the business. However, he also sold shares to help him throw the ‘party of a lifetime’ and to purchase expensive goods and gifts for his family. Hein became Chairman and Chief Executive Officer (CEO) of the newly quoted company, but over the next thirteen years his relationship with his board and shareholders became increasingly difficult. Gradually new financial controls and reporting systems were put in placE.Most of the established managers left as controls became more centralised and formal. The company’s performance was solid but unspectacular. Hein complained that ‘business was not fun any more’. The company was legally required to publish directors’ salaries in its annual report and the generous salary package enjoyed by the Chairman and CEO increasingly became an issue and it dominated the 2002 Annual General Meeting (AGM). Hein was embarrassed by its publication and the discussion it led to in the national mediA.He felt that it was an infringement of his privacy andcivil liberties.Phase 3 (2003–2008)In 2003 Hein found the substantial private equity investment necessary to take Rock Bottom private again. He also used all of his personal fortune to help re-acquire the company from the shareholders. He celebrated ‘freeing Rock Bottom from its shackles’ by throwing a large celebration party. Celebrities were flown in from all over the world to attenD.However, most of the new generation of store managers found Hein’s stylE.to be too loose and unfocuseD.He became rude and angry about their lack of entrepreneurial spirit. Furthermore, changes in products and how they were purchased meant that fewer people bought conventional audio products from specialist shops. The reliability of these products now meant that they were replaced relatively infrequently. Hein, belatedly, started to consider selling via an Internet sitE.Turnover and profitability plummeteD.In 2007 Hein again considered franchising the company,but he realised that this was unlikely to be successful. In early 2008 the company ceased trading and Hein himself,now increasingly vilified and attacked by the press, filed for personal bankruptcy.Required:(a) Analyse the reasons for Rock Bottom’s success or failure in each of the three phases identified in thescenario. Evaluate how Rick Hein’s leadership stylE.contributed to the success or failure of each phasE.(18 marks)(b) Rick Hein considered franchising the Rock Bottom brand at two points in its history – 1988 and 2007.Explain the key factors that would have made franchising Rock Bottom feasible in 1988, but would havemade it ‘unlikely to be successful’ in 2007. (7 marks)

A.Phase
B.
Hein
C.
However,
D.
Hein
E.
Phase
F.
Phase
G.
Required:
(a)
H.
(18
I.
Explain

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施工总布置时，施工照明及线路，应遵守哪些规定?