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咳喘、呃逆、嗳气、眩晕等，证属

A. 气滞证
B. 气虚证
C. 气脱证
D. 气陷证
E. 气逆证

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案例分析题零件关系P(零件名，条形码，供应商，产地，价格)中的（1）属性可以作为该关系的主键。查询产于西安且名称为“P2”的零件，结果以零件名、供应商及零件价格分列表示，对应的SQL语句为：SELECT零件名，供应商，价格FROM PWHERE零件名=’P2’ AND （2）；将供应商“S2”所供应的零件价格下调2%的SQL语句为：UPDATE P（3）WHERE供应商=’S2’；（2）处应选择（）

A. 条形码=西安
B. 条形码=’西安’
C. 产地=西安
D. 产地=’西安’

甲公司于1999年10月10日与乙银行签定了2年期的贷款500万元的合同，甲公司以自己的机器设备抵押，双方办理了抵押物登记手续。2000年10月12日，甲公司又从丙银行处贷款100万元，期限1年，由丁公司提供连带责任保证。2001年9月8日，因用作抵押物的机器设备出现故障，甲公司将其运至戊厂修理。同年10月28日，债权均已到期的乙银行和丙银行找到甲公司，要求归还贷款。乙银行同时还表示要以抵押物优先受偿。假设丙银行首先找到丁公司，要求其承担保证责任，则丁公司______。

A. 有权拒绝
B. 无权拒绝
C. 其拒绝的理由是保证合同无效
D. 其拒绝的理由是行使抗辩权

I found my father a very hard man to understand when I was young. He was very short and thin and had large blue eyes. I could have loved him as I did my mother, but he seemed to hold us off so that we could not approach him or sit on his knee as love to do. I believe he had a hard life as a child, and I know that he left school at the age of ten and started to work. This made him an unsociable man, unfriendly even to the people closest to him. I never knew him to have a close friend as the other men did. Everything he did had to be precise. If he chopped the sticks for the fire, each stick would be the same length and thickness as all the others, and they would all be stacked (堆放) without one out of place. His motto (座右铭) was "If a thing is worth doing, it is worth doing well". In our household his word was law and nobody dared dispute it. My father would take off his clothes and get into bed on Saturday afternoons, leaving my mother to mend his working clothes. This she disliked very much, for the clothes were dirty from the work he had been doing and she hated handling anything that was not clean. The writer thought ______ made her father unsociable.

A. an unhappy childhood
B. a lack of friends
C. no interest in hobbies
D. not smoking or drinking

Win16应用程序也同Win32应用程序一样，具有4GB的逻辑地址空间。不同的是，所有的Win16应用程序【18】同一个4GB的地址空间，并且以协作方式进行多任务处理。