更多“缩短基本时间的工艺措施之一是提高切削用量。”相关的问题
正常成人的二尖瓣瓣口面积为（）
A.1.0～1.9cm2
B.2.0～2.9cm2
C.3.0～3.9cm2
D.4.0～4.9cm2
E.＞5.0cm2
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关于肥大，下列描述中哪项不正确（ ）
A.肥大可伴化生 B.妊娠子宫增大为肥大伴增生 C.组织和器官的肥大其功能增强 D.心脏肥大是由于细胞增生引起的 E.肥大器官超过其代偿能力常导致失代偿
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下列PVC热稳定剂中，初期稳定性好而后期稳定性差的有（）。
A.镉皂
B.钡皂
C.锌皂
D.钙皂
E.镁皂
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Text 2 There are various ways in which individual economic units can interact with one another. Three basic ways may be described as market system, the administered system and the traditional system. In a market system individual economic units are free to interact among each other in the marketplace. It is possible to buy commodities from other economic units or sell commodities to them. In a market, transactions may take place via barter or money exchange. In a barter economy, real goods such as automobiles, shoes, and pizzas are traded against each other. Obviously finding somebody who wants to trade my old car in exchange for a sailboat may not always be an easy task. Hence, the introduction of money as a medium of exchange eases transactions considerably. In the modern market economy, goods and services are bought or sold for money. An alternative to the market system is administrative control by some agency over all transactions. This agency will issue edicts or commands as to how much of each goods and service should be produced, exchanged, and consumed by each economy. The central plan, drawn up by the government, shows the amounts of each commodity produced by the various firms and allocated to different households for consumption. This is an example of complete planning of production, consumption, and exchange for the whole economy. In a traditional society, production and consumption patterns are governed by tradition: every person’s place within the economy system is fixed by parentage, religion, and custom. Transactions take place on the basis of tradition, too People belonging to a certain group may have an obligation to care for other persons, provide them with food and shelter, agree for their health, and provide for their education. Clearly, in a system where every decision is made on the basis of tradition alone, progress may be difficult to achieve.
A．To outline contrasting types of economic systems.B．To explain the science of economics.C．To argue for the superiority of one economic system.D．To compare barter and money-exchange markets.
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防爆电气设备应尽量设置在（）的区域。
A.爆炸危险B.爆炸危险性很大C.爆炸危险性较大D.无爆炸危险或危险性较小
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路基断面的典型形式可分为路堤、路堑和填挖结合三种。
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小麦经过补种仍有缺苗断垄的地段，到（）可移苗补栽以保证全苗。
A.三叶期
B.分蘖期
C.拔节期
D.起身期
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患者男，45岁，外伤后致胫腓骨中1/3骨折，手法复位后，长腿石膏管型外固定。4周后，石膏管型于膝部有折断，未处理，3个月后X线片复查见骨折略有移位，骨折线清晰。该患者伤后如使用牵引治疗，最合适的牵引方式为（）
A . A.小腿皮肤牵引
B . 胫骨结节骨牵引
C . 跟骨牵引
D . Russel牵引
E . 悬吊牵引
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上午10点30分左右，玉某在5栋22层装模层C户型中间部位传递模板时，踢到马凳，不慎跌倒，后送医诊断为左臂肱骨骨折。措施：安全通道的马凳、钢筋，拆模前第一时间拆除。
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患者遍体水肿，面色萎黄，晨起头面较甚，动则下肢肿胀，能食而疲倦乏力，大便如常或溏，小便反多，舌苔薄腻，脉软弱，辨证属（）
A.水气凌心
B.脾气虚弱
C.肺气不宣
D.肝气不舒
E.肾虚不固
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7岁女孩，低热半月，消瘦轻咳。查体：体温38℃，营养差，右背下部听诊呼吸音减低，下肢有结节性红斑，接种过卡介苗，PPD试验强阳性。如果此患儿出现颅内压显著增高，眼底视神经乳头水肿，则首先应该鉴别的是（）
A.化脓性脑膜炎 B.病毒性脑膜炎 C.隐球菌脑膜炎 D.无菌性脑膜炎 E.Mollaret脑膜炎
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治疗洋地黄中毒所致的室性心动过速宜首先（）
A.钾盐
B.利多卡因
C.胺碘吷酮
D.普鲁卡因酰胺
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地方性法规的效力高于（）。
A、行政法规
B、部门规章
C、本级政府规章
D、下级政府规章
E、单行条例
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烟花爆竹、烟火药安全生产中，压药与造粒工房要做到定机定员，药物升温不得超过______℃，机械造粒时应有防爆墙隔离和联锁装置等。
A．15
B．20
C．25 D．35
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1974年我国男女篮球队解放后第一次参加亚运会篮球赛，比赛地点在伊朗的德黑兰，男女队均获得第（）名。
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