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女性，45岁，阵发性腹痛，腹胀，无排便排。气5天。2年前有阑尾手术史。查体：腹膨隆，可见肠型，腹软无压痛，肠鸣音亢进，腹部X线平片见中下腹部小肠有数个液气平面，盲肠、升结肠肠腔扩张，最可能的诊断是
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混凝土中掺入减水剂，在保证工作性和强度不变的条件下，可节约水泥的用量。
Article One A heart attack is no joke, but the old adage that "laughter is the best medicine" appears to be true when it comes to protecting against heart attacks, according to research released on November 15. People with heart disease are 40 per cent less likely to laugh when faced with difficulty, a team of very serious researchers at the University of Maryland in Baltimore discovered. They studied the "humor responses" of 300 people, half of whom had had a heart attack or had undergone bypass surgery. The study found that people with heart disease are less likely to recognize humor or use it to get out of uncomfortable situations. They laughed less even in positive situations, and displayed more anger and hostility. Therefore, the recommendation for a healthy heart may one day be: exercise, eat right and laugh a lot.Article Two. Bridge aids health. If you want to stay healthy, play bridge. A new study by a University of California-Berkeley researcher indicates that playing contract bridge leaves people with higher numbers of immune cells. This could be the first evidence that the human cortex— which is subject to voluntary control—can play a role in stimulating the immune system.Article Three Marriage helps health. There is strong evidence that living in a committed partnership is good for both mental and physical health. Married people, men in particular, live longer and enjoy better health than their divorced, widowed or never-married peers. Married women rate their physical and emotional health higher than single, divorced or widowed women, especially when they get older, says Linda Waite, a sociology professor at the University of Chicago and co-author of The Case for Marriage. Marriage by itself is no magic shield against the world’ s ills. It’ s living in a loving and supportive environment that counts, especially if you are a woman.Article Four In the first rays of the morning sun, Yu Yanni, forty something, begins her morning exercises in a small park beside the Jianguomen flyover in Beijing. She has jogged about one kilometer from her home. Now she kicks her legs and bends her waist before doing body-building exercises with a bevy of other women in the park. "We gather here spontaneously," said Yu. "By jumping, stretching arms and legs and wrestling the body, we feel 10 years younger than our age." As living standards rise, Chinese are paying more attention to their physical condition. As Yu said that sporting has become part of their daily lives. They are engaging in a variety of physical activities: martial arts, Qigong, Taiji, table tennis, jogging, body-building and even disco dancing. Article Five Organic food aids health. Over the past few years, people seem to have become fed up with being told what they can’ t eat. They also have followed too many diets that don’ t work. They want to hear positive messages about the health benefits of food. They are understandable worried about some food-industry practices and problems. I buy as much fresh organic food as possible. I believe that future studies will show that eating organically will make us healthier. I also enjoy them more and feel strongly about supporting the organic farmer’ s cause. Even when I can’t get to a favorite local market, I still buy easy-to-cook fresh ingredients, such as good olive oil, unsalted butter and cheese from my favorite supplier. Now match each of the schools to the appropriate statement. Note: there are two extra statements.Statements[A] Stimulating the immune system helps health.[B] Loving and good environment is very important.[C] Sportsmen are more healthier.[D] A good diet appeals to people.[E] Work less, play more.[F] We should use humor to get out of uncomfortable situations.[G] Physical exercises aids health. Article Four
混凝土的黏聚性是指混凝土拌和物在施工过程中组成材料之间的黏聚力。( )
凡工程结构用混凝土均应有配合比申请单和试验室签发的配合比通知单。( )
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