更多“属于二类包裹范围的物品是（）。”相关的问题
热电偶测温仪表的测温范围很广,可以测量生产过程中0~1600℃范围内的液体、蒸汽、气体介质以及固体表
热电偶测温仪表的测温范围很广,可以测量生产过程中0~1600℃范围内的液体、蒸汽、气体介质以及固体表面温度,通常用于测量( )℃以上较高温度范围. A.500 B.300 C.600 D.850
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板式输送机的拉紧装置通常采用（）。
A.车式拉紧装置 B.垂直式拉紧装置 C.螺旋拉紧装置
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指挥灯信号绿色箭头灯亮时()。A、准许按箭头所指方向通行B、禁止按箭头所指方向通行C、准许车辆直
指挥灯信号绿色箭头灯亮时()。 A、准许按箭头所指方向通行 B、禁止按箭头所指方向通行 C、准许车辆直行 D、准许车辆转弯
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某新建电厂装有2×300MW机组，选用一组220V动力用铅酸蓄电池容量2000Ah，二组110V控制用铅酸蓄电池容量600Ah，蓄电池布置在汽机房层，直流屏布置在汽机房(6.6m层高)，铜芯电缆长28...请按回路允许电压降，计算动力用蓄电池至直流母线间最小电缆截面应为下列哪项数值______
A.211mm2
B.303mm2
C.422mm2
D.566mm2
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Imagine eating everything delicious you want - with none of the fat. That would be great, wouldn’t it New "fake fat" products appeared on stone shelves in the United States recently, but not everyone is happy about it. Makers of the products, which contain a compound called olestra, say food manufacturers can now eliminate fat from certain foods. Critics, however, say the new compound can rob the body of essential vitamins and nutrients (营养物) and can also cause unpleasant side effects in some people. So it’s up to consumers to decide whether the new fat-free products taste good enough to keep eating. Chemists discovered olestra in the late 1960s, when they were searching for a fat that could be digested by infants more easily. Instead of finding the desired fat, the researchers created a fat that can’t be digested at all. Normally, special chemical in the intestines (肠) "grab" molecules of regular fat and break them down so they can be used by the body. A molecule of regular fat is made up of three molecules of substances called fatty acids. The fatty acids are absorbed by the intestines and bring with them the essential vitamins A, D, E and K. when fat molecules are present in the intestines with any of those vitamins, the vitamins attach to the molecules and are carded into the bloodstream. Olestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorb. It just slides through the intestines without being broken down. Manufacturers say it’s that ability to slide unchanged through the intestines that makes olestra so valuable as a fat substitute. It provides consumers with the taste of regular fat without any bad effects on the body. But critics say olestra can prevent vitamins A, D, E and K from being absorbed. It can also prevent the absorption of carotenoids (类胡萝卜素), compounds that may reduce the risk of cancer, heart disease, etc. Manufacturers are adding vitamins A, D, E and K as well as carotenoids to their products now. Even so, some nutritionists are still concerned that people might eat unlimited amounts of food mad with the fat substitute without worrying about how many calories they are consuming.
A．It may lead to the over-consumption of vitamins.B．People may be induced to eat more than is necessary.C．The function of the intestines may be weakened.D．It may trigger a new wave of fake food production.
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用卡尺测量轴径，用内径百分表测量孔径是属于（）测量。
A.绝对测量
B.直接测量
C.间接测量
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下列害虫中不能在长江流域以北地区安全越冬的是（）
A.麦蚜
B.麦蜘蛛
C.麦黏虫
D.麦叶蜂
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自顶向下开发信息系统的策略最适合于下列哪类系统？ ()
A.大型信息系统
B.小型信息系统
C.半结构化系统
D.非结构化系统
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两个AIDC管制系统之间报文的沟通与传递主要通过多雷达系统的（）。
A.DP
B.RDP
C.FDT
D.FDP
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近代汉语晚期的语料主要有（）。
A.长篇小说
B.笔记小说
C.讲唱文学
D.传奇
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阅读以下说明和C语言代码，回答问题1至问题3，将解答填入对应栏内。 【说明】 在实时系统中，许多控制软件需要将数据封装到一个数据结构中，以节省存储空间。对于位操作，使用汇编语言实现其访问比较容易，...内存空间常划分为代码段(text)、数据段(data)、bss段(bss)、堆区(heap)和栈区(stack)，那么图4-1中myRadarData数组的存储空间应分配在哪个段中指针变量p、 Q应分配在哪个段中
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制作PPT的原则是尽量简单，“keep，it，simple，and，stupid”，有人就把它简化为（）原则。
A.SIMPLE
B.KISS
C.STUPID
D.简单化
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在复方感冒制剂中，可兴奋中枢、驱走睡意、恢复精力的药物是()
A.咖啡因
B.布洛芬
C.盐酸伪麻黄碱
D.马来酸氯苯那敏
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刘护士，在配置化疗药物时，因药瓶压力过大，药物荐到眼睛内，刘护士应立即
A . 用肥皂水清洗眼睛B . 用高渗盐水清洗眼睛C . 用低渗盐水清洗眼睛D . 用弱酸溶液清洗眼睛E . 用清水清洗眼睛
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如图所示回路，已知FLmax=30kN，A1=100cm2，∆pTmin=0.4MPa。 （1）求溢流阀的调定压力pY； （2）溢流阀调定后，分别求当FL=10kN，FL=0时的p1、pY、∆pT。
如图所示回路，已知FLmax=30kN，A1=100cm2，∆pTmin=0.4MPa。
（1）求溢流阀的调定压力pY；
（2）溢流阀调定后，分别求当FL=10kN，FL=0时的p1、pY、∆pT。
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