更多“722、( T )在SQL的标准数据类型中,char”相关的问题
肝硬化腹水时以下哪一类最常见()
A . A．低钾低氯血症
B . B．高钾血症
C . C．低钠血症
D . D．低钠合并碱中毒
E . E．低钙血症
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设物标高度为H,测者眼高为e,则理论上物标能见地平距离DH为（）
A.2.09
B.2.09
C.2.09+2.09
D.2.20
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卖场促销位陈列可用以下哪些陈列道具？（）
A.促销PVC陈列桌
B.促销PVC陈列台
C.精品陈列桌（A）
D.登高车
E.端架
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催芽强度，即裂口和发芽的种子达（）时即可播种。
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以下哪一项不是在编制项目计划时必须做出的权衡决策？（）
A . A、使用熟练还是不熟练的劳动力
B . B、比较供货方应该获得的利润和其他供货方以前收到的利润
C . C、自造还是把工作承包给分包商
D . D、成本/质量的重要性
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TEXT B Cars account for half the oil consumed in The U. S. , about half the urban pollution and one fourth the greenhouse (温室) gases. They take a similar oil of ullage (损耗) resources in other industrial nations and in tile cities of the developing world. As vehicle use continues to increase in the coming decade, the U. S. and other countries will have to deal with these issues or else face unacceptable economic, health related and political costs. It is unlikely that oil prices will remain at their current low level or that other nations will accept a large and growing U. S. contribution to global climatic change. Policymakers and industry have four options: reduce vehicle use, increase the efficiency and reduce the e missions of conventional gasoline-powered vehicles, switch tm less harmful fuels, or find less polluting driving systems. The last of these—in particular the introduction of vehicles powered by electricity—is ultimately the only sustainable option. The other alternatives are attractive in theory but in practice are either impractical or offer only marginal improvements. For example, reduced vehicle use could solve traffic problems and a host of social and environmental problems, but evidence from around the world suggests that it is very difficult to make people give up their cars to any significant extent. In the U. S. , mass-transit ridership and carpooling (合伙用车) have declined since World War Ⅱ. Even in western Europe, with fuel prices averaging more than ＄ 1 a liter (about ＄ 4 a gallon) and with easily accessible mass transit and dense populations, cars still account for 80 percent of all passenger travels. Improved energy efficiency is also appealing, but automotive fuel economy has barely made arty progress in 10 years. Alternative fuels such as natural gas, burned in internal-combustion engines, could be introduced at relatively low cost, but they would lead to only marginal reductions in pollution and greenhouse emissions especially because oil companies are already spending billions of dollars every year to develop less polluting types of gasoline.
A．The designing of highly efficient car engines.B．A reduction of vehicle use in cities.C．The development of electric cars.D．The use of less polluting fuels.
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货币的基本职能是______。
A.价值尺度和流通手段
B.价值尺度和贮藏手段
C.支付手段和流通手段
D.世界货币和价值尺度
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在实务中，注册会计师对管理层做出会计估计的计算过程实施审计程序的性质.时间安排和范围取决的因素有（ ）。
A.评估的重大错报风险 B.注册会计师对管理层会计估计程序和方法的了解与评价 C.会计估计的合法性和合规性 D.会计估计在财务报表中的重要性
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酵母属于（）。
A.单细胞真菌
B.多细胞真菌
C.霉菌
D.大型真菌
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水情自动测报系统通信主要采用（）传播。
A、地波
B、电离层
C、直射
D、地下
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焊接残余应力较大的部位往往容易发生应力腐蚀或疲劳裂纹。
A.对 B.错
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患者，男，52岁。间歇性无痛性全程肉眼血尿半年，尿脱落细胞检查，可见恶性肿瘤细胞。下列哪项检查意义不大（）
A.B超检查 B.CT检查 C.膀胱镜检查 D.尿路造影 E.肾图
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能够反映战国时期封建生产关系形成的历史现象是（）
A . A．逃亡者“耕豪民之田，见税什伍”
B . B．农民广泛使用铁制工具
C . C．出现初步繁荣的封建城市
D . D．出现了郡县
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糖的水溶液与α-萘酚试剂反应生成：（）
A.红色沉淀 B.紫色缩合物 C.蓝色缩合物 D.樱桃红色 E.棕褐色沉淀
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