更多“下列关于数据库数据模型的说法中,哪一个是不正确的?()”相关的问题
食管为一扁长的肌性管道,上端于第6颈椎下缘平面连接咽,下行入胸腔。
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只作用于一个进程一次的原语是()。
A.创立
B.解挂
C.阻塞
D.挂起
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管道的最大坡度不得大于0.15,但长度小于5m的管段可不受此限制。
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当协转/网桥上关联V35/RJ45的指示灯告警,则为()故障。
A.协转/网桥故障, B.用户设备故障, C.电信网络故障, D.电信线路故障。
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冷镦螺母类整形冲头组合组成部分:()
A.整形冲头
B.整形冲头模套
C.整形冲头垫块
D.整形冲头后垫
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三级医院药事管理委员会必须是
A.由具有高级技术职务任职资格的药学、临床医学等方面的专家组成
B.由具有高级技术职务任职资格的药学、临床医学和医疗行政管理等方面的专家组成
C.由具有高级技术职务任职资格的药学、临床医学和医院感染管理等方面的专家组成
D.由具有高级技术职务任职资格的药学、临床医学、医院感染管理和医疗行政管理等方面的专家组成
E.由具有高级技术职务任职资格的药学、临床医学、医院感染管理和医疗行政管理、监督管理等方面的专家组成
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简要回答外源性化学物质在体内生物转化的基本过程及其毒理学意义?
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机械性肠梗阻病人,当腹部X线显示下列哪种变化时,应考虑绞窄性肠梗阻的可能
A.近端肠管扩张,远端肠管未见气体 B.扩张肠段呈阶梯型排列 C.孤立性肠段扩张且较固定 D.扩张肠段黏膜呈鱼刺状 E.大小肠均胀气
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庆大霉素的适应证除外()
A.支气管肺炎
B.脑膜炎
C.结核病
D.烧伤感染
E.细菌性痢疾
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英国某公司与中国江苏某企业协议设立中英合资经营企业,双方订立了合资经营合同。合同规定:合营企业的投资总额为1000万美元,注册资本为500万美元。英国公司以技术和设备出资,评估作价为200万美元,...以下事项须出席会议的董事一致通过方可作出决议的是:
A.董事长兼任合营企业的总经理
B.在境外设立分支机构
C.延长合营期限
D.合营企业分立为两个企业
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Astronaut Jim Voss has enjoyed many memorable moments in his career, including three spaceflights and one space walk. But he recalls with special fondness a decidedly earthbound (为地球引力所束缚的) experience in the summer of 1980 when he participated in the NASA-ASEE Summer Faculty Fellowship Program. Voss, then a science teacher at West Point, was assigned to the Marshall Space Flight Center’s propulsion lab in Alabama to analyze why a hydraulic fuel pump seal on the space shuttle was working so well when previous seals had failed. It was a seemingly tiny problem among the vast complexities of running the space program. Yet it was important to NASA because any crack in the seal could have led to destructive results for the astronauts who relied on them. "I worked a bit with NASA engineers," says Voss, "but I did it mostly by analysis. I used a handheld calculator, not a computer, to do a thermodynamic(热力学的) analysis." At the end of the summer, he, like the other NASA-ASEE fellows working at Marshall, summarized his findings in a formal presentation and detailed paper. It was a valuable moment for Voss because the ASEE program gave him added understanding of NASA, deepened his desire to fly in space, and intensified his application for astronaut status. It was not an easy process. Voss was actually passed over when he first applied for the astronaut program in 1978. Over the next nine years he reapplied repeatedly, and was finally accepted in 1987. Since then he has participated in three space missions. The 50-year-old Army officer, who lives in Houston, is now in training for a four-month mission as a crew member on the International Space Station starting in July 2000. Voss says the ASEE program is wonderful for all involved. "It brings in people from the academic world and gives NASA a special property for a particular period of time. It brings some fresh eyes and fresh ideas to NASA, and establishes a link with our colleges and universities," Voss explains. "There’s an exchange of information and an exchange of perspectives that is very important." For the academic side, Voss says, "the ASEE program also brings institutions of higher learning more insight into new technology. We give them an opportunity to work on real world problems and take it back to the classroom.\
A.The technological significance of the program.B.The educational significance of the program.C.The philosophical significance of the program.D.The historical significance of the program.
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下列有关参考值范围的描述中,错误的是( )。
A.参考值范围就是可信区间 B.参考值范围就是正常值范围 C.可以用百分位数法计算95%参考值范围 D.据实际情况,可以取单侧参考值范围 E.确定参考值范围,不使用该人群用本观察值的极差
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与肝风内动有关的舌态有强硬舌、痿软舌、?斜舌、吐弄舌。
A . 正确
B . 错误
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乙型肝炎传给婴儿主要途径是()
A.粪-口传染
B.注射血浆制品
C.输血
D.母婴垂直传染
E.密切生活接触
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客户办理了密码、存款凭证其中一项挂失后,又遗失另一项的,不能再次挂失。
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