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敏感因素对项目经济评价指标产生()敏感性时会给项目带来较大风险。
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试述职业性危险因素调查？
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人工光源按照发光原理可分为热辐射和___________两大类。
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压力矫直机根据压头和支点的配置方式，可分为立式、（）和复合式。
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简述加热修复手机信号方案绝技。
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过氧化物、高氯酸盐、叠氮盐、乙炔盐、三硝基甲苯等易爆物质，受震或受热可能发生爆炸。
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检查肌张力时要求（）
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A: Good morning．My name is Mr．Brown．I'm from Australia．Here is my card. B: Thank you．I'm pleased to meet you, Mr．Brown．My name is Kathy Perless, the representative of GREen Textile Import and Export Corporation. A: Pleased to meet you too, Ms．Perless．I travel a lot every year on business, but this is my first visit to your country．I must say I have been much impressed by your friendly people. B: Thank you for saying so．Have you seen the exhibition halls? On display are most of our products, such as silk, woolen knitwear, cotton piece goods, and garments. A: Oh, yes．I had a look yesterday．I found some of the exhibits to be fine in quality and beautiful in design．The exhibition has successfully displayed to me what your corporation handles．I've gone over the catalogue and the pamphlets enclosed in your last letter．I've got some idea of your exports．I'm interested in your silk blouses. B: Our silk is known for its good quality．It is one of our traditional exports．Silk blouses are brightly colored and beautifully designed．They've met with great favor overseas and are always in great demand. A: Some of them seem to be of the latest style．Now I've a feeling that we can do a lot of trade in this line．We wish to establish relations with you. B: Your desire coincides with ours. A: Concerning our financial position, credit standing and trade reputation, you may refer to Bank of Hong Kong, or to our local Chamber of Commerce or inquiry agencies. B: Thank you for your information．As you know, our corporation is a state-owned one．We always trade with foreign countries on the basis of equality and mutual benefit．Establishing business relations between us will be to our mutual benefit．I have no doubt that it will bring about closer ties between us. A: That sounds interesting．I'll send a fax home．As soon as I receive a definite answer, I'll make a specific inquiry. B: We'll then make an offer as soon as possible．I hope a lot of business will be conducted between us. A: So do I.
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女性，36岁。心悸气短2年，夜间喘憋半年，下肢水肿3个月。查体：心脏大，心音低钝，肝大，下肢水肿。X线片：心影明显增大，心胸比率>60%，肺淤血。心电图：V、V、V病理性Q波，低电压，ST-T改变。以下检查最有意义的是（）。
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《神农本草经》谓“安五脏，和心志，令人欢乐无忧”的药物是（）。