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当前学科：建筑材料
题目：
国家规范规定，硅酸盐水泥的终凝时间 [ ]
A. 大于等于390min
B. 大于等于390min
C. 大于等于600min
D. 大于等于45min
答案：
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推荐知识点:
石膏的保水性、可塑性好，所以常用石膏拌制抹灰砂浆。 （ ）
关于妊娠诊断下列那项是错误的：
翻译篇章If you intend using humor in your talk to make people smile, you must know how to identify shared experiencesand problems. Your humor must be relevant to the audience andshould help to show them that you are one of them or that you understand their situation and are in sympathy with their point of view. Depending on whom you are addressing, the problems will be different. If you are talking to a group of managers, you may refer to the disorganizedmethods of their secretaries; alternatively if you are addressing secretaries, you may want to comment on their disorganized bosses.Here is an example, which Iheard at a nurses’convention, of story which works well because the audience all share thesame view of doctors. A man arrives in heaven and is being shown around by St. Peter. He sees wonderful accommodations, beautiful gardens, sunny weather, and so on. Everyone is very peaceful, polite and friendly until, waiting in a line for lunch, the new arrival is suddenly pushedaside by a man in a white coat, who rushes to the head of the line, grabs his food and stomps over to a table by himself. “Who is that?”the new arrival asked St. Peter. “Oh, that’s God,”came the reply, “but sometimes he thinks he’s a doctor.”If you are part of the group which you are addressing, you will be in a position to knowthe experiences andproblems which are common to all of you and it’ll be appropriate for you to make a passing remark about the inedible canteen food or the chairman’s notorious bad taste in ties. With other audiences you mustn’t attempt to cut in with humor as they will resent an outsider makingdisparaging remarks about their canteen or their chairman. You will be on safer ground if you stick to scapegoats like the Post Office or the telephone system.If you feel awkward being humorous, you must practice so that it becomes more natural. Include a few casual and apparently off-the-cuff remarks which you can deliver in a relaxed and unforced manner. Often it’s the delivery which causes the audience to smile, so speak slowly and remember that a raised eyebrow or an unbelieving look may help to show that you are making a light-hearted remark.Look for the humor. It often comes from the unexpected. A twist on a familiar quote “If at first you don’t succeed, give up”or a play on words or on a situation. Search for exaggeration and understatements. Look at your talk and pick out a few words or sentences which you can turn about and inject with humor.
2╳07年，某公司因市场需求变化决定停产丙产品，同时决定将用于生产丙产品的外购材料全部售出，该材料有10吨，成本为150万元；据调查，该材料市场价格为14万元/吨，售出10吨该材料可能发生的销售费用及税金2万元。要求：计算2╳07年12月31日该材料账面价值（列出计算过程）
企业生产甲产品，月初在产品原材料定额费用为12500元，工时定额为50000小时，月初在产品的实际费用为：直接材料13100元，燃料及动力4100元，直接工资3890元，制造费用11290元。本月原材料的定额费用为25200元，定额工时为70000小时。本月实际费用为：直接材料23469元，燃料及动力61900元，直接工资为48910元，制造费用为66710元。本月完工产品原材料定额费用为13000元，定额工时为80000小时。要求：根据上述资料采用定额比例法计算完工产品和在产品成本。（10分）
谈谈怎样才能写好开头和结尾？
假若这次会议由你安排，你打算怎样来保证双向的沟通？
试述保险利益的功能。
典型基本医疗保险保单对每次住院保险金给付最长期限有（）
您认为在中国的企业里应怎样设计和维持一种良好的环境？
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