更多“Which of the following is a st”相关的问题
在我国，具有省、市先进水平，并接近或赶上国内先进水平，对医药卫生发展有一定意义或在实际应用中有较好效果者，评为医学科技（）
A.一级成果
B.二级成果
C.三级成果
D.四级成果
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Divorce doesn"t necessarily make adults happy. But toughing it out in an unhappy marriage until it turns around just might do, a new study says.The research identified happy and unhappy spouses,culled(选出) from a national database. Of the unhappy partners who divorced, about half were happy five years later. But unhappy spouses who stuck it out often did better. About two-thirds were happy five years later. Study results contradict what seems to be common sense, says David Blankenhorn of the Institute for American Values, a think-tank on the family. The institute helped sponsor the research team based at the University of Chicago. Findings will be presented in Arlington, Va., at the "Smart Marriage" conference, sponsored by the Coalition for Marriage, Families and Couples Education.The study looked at data on 5,232 married adults from the National Survey of Families and Households. It included 645 who were unhappy. The adults in the national sample were analyzed through 13 measures of psychological well-being. Within the five years, 167 of the unhappy were divorced or separated and 478 stayed married.Divorce didn"t reduce symptoms of depression, raise self-esteem or increase a sense of mastery compared with those who stayed married, the report says. Results were controlled for factors including race, age, gender and income. Staying married did not tend to trap unhappy spouses in violent relationships. What helped the unhappy married turn things around To supplement the formal study data, the research team asked professional firms to recruit focus groups totaling 55 adults who were "marriage survivors". All had moved from unhappy to happy marriages. These 55 once-discontented married felt their unions got better via one of three routes, the report says:Marital endurance. "With time, job situations improved, children got older or better, or chronic ongoing problems got put into new perspective." Partners did not work on their marriages.Marital work. Spouses actively worked "to solve problems, change behavior or improve communication".Personal change. Partners found "alternative ways to improve their own happiness and build a good and happy life despite a mediocre marriage." In effect, the unhappy partner changed.
A．divorce is a better solution to an unhappy marriage than staying togetherB．divorce is not necessarily the only solution to an unhappy marriageC．keeping an unhappy marriage needs much courage and enduranceD．to end an unhappy marriage or not is a tough decision for the spouses
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某公司上一期的经营费用为3．4亿元，销售成本为3．8亿元，与经营费用相关的预付费用增加1．2亿元，应付费用减少0．7亿元，折旧为0．6亿元，摊销为0．5亿元，则该公司上一期的经营费用现金支出共计（）亿元。
A.10.2
B.8.4
C.6.4
D.4.2
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幽门螺杆菌（Hp）感染相关性疾病有（）
A . 慢性胃炎
B . 平滑肌瘤
C . 溃疡病
D . 血管瘤
E . 胃癌
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为什么在0.1mol·L－1的FeSO4溶液中，通入H2S得不到FeS沉淀？通过计算说明需要怎样的条件才能得到FeS沉淀？（已知KspΘFeS＝3.7×10－19，H2S：KaΘ1×KaΘ2＝9.37×10－22）
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根据一事不再罚的行政法基本原理，行政执法人员崔某对投诉、举报其违法执法活动的李某实施打击报复，发证机关只能按照有关规定对崔某实施暂扣其行政执法证件、收缴其行政执法证件或者给予行政处分三种处理中的一种。
A.对 B.错
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保障受试者权益的主要措施是（）
A.知情同意书的签订
B.伦理委员会严格审议试验方案
C.伦理委员会的组成和工作不受任何参与试验者的影响
D.伦理委员会与知情同意书
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建筑热工设计分区的主要指标是（）和（），辅助指标是（）。
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最高理论授信额度的测算可以采取（）
A、资产负债率法
B、权益法
C、净资产法
D、担保法。
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法治可以脱离一定社会经济、政治和文化所提供的社会条件。
A.对 B.错
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表面凹凸不平，多孔，似蜂窝状的药材为（）
A．炉甘石
B．赭石
C．滑石
D．自然铜
E．信石
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患者，既往有肾病史，因头晕，无尿数日就诊，根据其肝右叶-右肾声像图，最可能的诊断为（）
患者，既往有肾病史，因头晕，无尿数日就诊，根据其肝右叶-右肾声像图，最可能的诊断为（）
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以太网中使用物理地址的作用是______。
A．用于不同子网中的主模进行通信 B．作为第二层设备的唯一标识C．用于区别第二层和第三层的协议数据单元 D．使得主机可以检测到未知的远程设备
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下列关于共同对手方制度说法正确的有( )。
A．一般将结算参与人作为共同交收对手方
B．共同对手方在结算过程中，同时作为所有买方的卖方和所有卖方的买方
C．如果买卖中的一方不能按约定条件履约交收，共同对手方要依照结算规则向守约一方先行垫付其应收的证券或资金
D．“共同交收方”的主要优点是可以简化操作手续，提高清算效率
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