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如图中导线的弧垂为f()。
如图中导线的弧垂为f()。
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将探头直接朝向空气发射时()
A.不反射 B.折射多于反射 C.反射多于折射 D.不折射
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男,60岁,咳嗽,右胸痛,2个月憋气,抽烟30年,20支/日。胸片示,右肺门增大,右侧胸腔积液,拟诊断为右肺癌,胸膜转移。下列哪项检查有确诊价值()
A . 胸部CT
B . 胸水CEA
C . 胸水ADA
D . 胸水瘤细胞
E . 胸水LDH
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《建筑设计防火规范》规定,室内消防给水管道应用阀门分成若干独立段,对于单层厂房(仓库),当某段损坏时,检修停止使用的消火栓最多应为()个。
A.10
B.8
C.6
D.5
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酸雨观测规范中指出,自动采样设备的平均故障间隔时间(MTBF)是()。
A.不低于
B.不高于
C.3000h
D.4000h
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习得的抑制,主要包括()。
A.社会规范的抑制
B.自我情绪的抑制
C.痛苦线索的抑制
D.自我行为的抑制
E.对报复的畏惧
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库存不仅影响成本,通过科学的卷烟库存管理,还可以提高零售客户周转率和盈利水平。
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关于反补贴措施和反倾销措施的异同,下列说法不正确的是( )。
A.反补贴调查在申请、启动、实施方面的条件和程序与反倾销调查基本相同
B.反补贴调查终止情形之一“通过与有关国家(地区)政府磋商达成协议,不需要继续进行反补贴调查”,属于反倾销调查所没有的终止情形
C.“补贴金额是微量补贴”是反补贴调查的终止情形
D.临时反补贴措施实施期限与临时反倾销措施一样,不得超过4个月,特殊情形下,可以延长
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关于农村三级卫生保健网是指哪三级()。
A.省级
B.县级
C.市级
D.村级
E.乡级
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二翅豆俗称:龙凤檀,气干密度()。
A . A.1.06-1.10g/cm
B . B.1.07-1.12g/cm
C . C.1.08-1.12g/cm
D . D.1.07-1.11g/cm
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个人商业用房贷款执行的利率可低于中国人民银行公布的同期同档次基准利率。
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For well over a century, one street in NewYork City has been known as the heart of theAmerican theater. The name of the street isBroadway. Mention that name to anyone whohas ever visited New York, he will remember 【M1】______bright lights, eager crowds, and an electricair of excitement. Over the years, Broadwayhas been known success and failure, praise 【M2】______and scorn. In recent times it has faced specialproblems, both artistic and financial. Yet,despite of an its imperfections, Broadway 【M3】______remains the center of theatrical activityin the United States. The goal of youngperformers in the U.S. is still to act ina Broadway play. Today the high cost of theatrical productionis limiting both quantity and qualification. 【M4】______Whereas it was possible to produce a play onBroadway for $ 10,000 or less before WorldWar Ⅱ, it costs at least ten times as many 【M5】______to do so today. As a result, less plays are 【M6】______produced, and producers seldom dare to trynew forms of drama since they may not prove profit. 【M7】______ On Broadway, a play must be popularsufficiently to attract audiences over a long 【M8】______period of time. A long run is essential becauseBroadway theaters are not given financial supportby the government, as like leading theaters in 【M9】______most other countries. Yet, funds are raised 【M10】______for individual productions and must be repaidto the investors, if at all possible. Thusproducers need to find plays which will pleaseaudiences. Often the result is a play with littleartistic value.【M1】
A.S.B.C.【M1】
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WINDOWS2000的每种桌面方案都包括()。
A.独特的墙纸 B.屏幕保护程序 C.3—D图标 D.声音、字体、颜色方案等
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奇静脉注入()
A . 颈内静脉
B . 头臂静脉
C . 上腔静脉
D . 下腔静脉
E . 锁骨下静脉
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下列不属于左肺形态特征的是()
A.左肺较狭长
B.左肺的前缘下部有一心切迹
C.左肺呈半圆椎体形
D.左肺被水平裂和斜裂分为上、中、下三叶
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