实现和维护劳动者权益是社会主义制度的本质要求。劳动者获得权利、维护权益的基础是（）A.依法签订劳动合同B.保障劳动者主人 .. 十点题库

f(x)=cosx,则它的导数为()

A. cosx B. -sinx C. -cosx D. sinx

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八路抢答器项目一：制作声光控灯PCB元件库（20分）任务...

八路抢答器项目一：制作声光控灯PCB元件库（20分）任务一：新建项目文件（4分）新建一个项目文件“八路抢答器.PrjPCB”。任务二：新建PCB库文件（4分）新建PCB库文件“八路抢答器.PcbLib”。任务三：制作PCB库元件封装（12分）（1）制作数码管封装。（6分）命名为“SEG”,焊盘大小PAD为100mil×60mil，通孔30mil；焊盘1和2垂直间距为100mil，1和10的水平间距为800mil，如图8-38所示。图8-38 SEG封装（2）制作按键封装。（6分）命名为“Button”,焊盘大小PAD为80mil×80mi，通孔50mil；焊盘1和2水平间距为200mil，1和3的垂直间距为300mil；轮廓宽为300mil，高为400mil，如图8-39所示。图8-39 Button封装项目二：绘制声光控灯原理图（30分）任务一：新建声光控灯原理图（2分）新建原理图文件“八路抢答器.SchDoc”。任务二：加载集成库（10分）加载库“Miscellaneous Connectors .Intlib”（2分）和“Miscellaneous Devices .Intlib”（2分），“ NSC Analog Timer Circuit.IntLib”（2分），“TI Interface Display Driver.IntLib”（2分），“八路抢答器.PcbLib”（2分）。任务三：绘制原理图（18分）绘制原理图如图8-40所示，元件属性见表8-2。图8-40 八路抢答器表8-2 八路抢答器元件属性 Library Ref （元件库名称） Library Name （库) Designator (元件标识) Footprint (封装) Comment (注释) Value (值) Header 2 Miscellaneous Connectors.IntLib P1 HDR1X2 Header 2 Res2 Miscellaneous Devices.IntLib R1—R6 AXIAL-0.3 1OK Res2 R7 AXIAL-0.3 2K Res2 R8 AXIAL-0.3 100K Res2 R9-R15 AXIAL-0.3 360 Cap Pol1 C3，C5 CAPPR2-5x6.8 100uF Cap C1，C4 RAD-0.1 104 Cap C2 RAD-0.1 103 Diode 1N4148 D1-D15 DIODE-0.4 1N4148 SW-PB S1-S9 Button（自制） 2N3904 Q1 TO-92A 9013 Speaker LS1 PIN2 Dpy Blue-CC DS1 SEG（自制） LM555J NSC Analog Timer Circuit.IntLib U1 J08A LM555J SN54LS48J TI Interface Display Driver.IntLib U2 J016 CD4511 项目三：制作八路抢答器PCB图（50分）任务一：新建PCB文件（10分）利用向导或手工新建一个PCB文件“八路抢答器.PcbDoc”（2分）。要求：（1）单位选择“Imperial”。（2分）（2）电路板为双面板。（2分）（3）电路板形状为方形，电路板尺寸3100mil×4100mil，禁止电气边界尺寸为3000mil×4000mil，并且标注尺寸。（4分）任务二：加载网络表并手工布局（16分）任务三：设置布线规则（10分）（1)线宽规则。（6分） ①设定VCC网络的线宽为30mil，GND网络的线宽为40mil，其余信号线线宽15mil。 ②设定GND的优先级最高，VCC依次降低，其余信号线优先级最低。（2）布线层规则。选中Bottom Layer和Top Layer，双面布线。（2分）（3）布线拐角模式：Rounded。（2分）任务四：自动布线（10分）先进行电源线和地线的预处理布线，然后进行全局布线。任务五：后续处理（4分）给电路图中所有焊盘补泪滴（2分）和覆铜（2分）。

八路抢答器项目一：制作声光控灯PCB元件库（20分）任务一：新建项目文件（4分）新建一个项目文件“八路抢答器.PrjPCB”。任务二：新建PCB库文件（4分）新建PCB库文件“八路抢答器.PcbLib”。任务三：制作PCB库元件封装（12分）（1）制作数码管封装。（6分）命名为“SEG”,焊盘大小PAD为100mil×60mil，通孔30mil；焊盘1和2垂直间距为100mil，1和10的水平间距为800mil，如图8-38所示。图8-38 SEG封装（2）制作按键封装。（6分）命名为“Button”,焊盘大小PAD为80mil×80mi，通孔50mil；焊盘1和2水平间距为200mil，1和3的垂直间距为300mil；轮廓宽为300mil，高为400mil，如图8-39所示。图8-39 Button封装项目二：绘制声光控灯原理图（30分）任务一：新建声光控灯原理图（2分）新建原理图文件“八路抢答器.SchDoc”。任务二：加载集成库（10分）加载库“Miscellaneous Connectors .Intlib”（2分）和“Miscellaneous Devices .Intlib”（2分），“ NSC Analog Timer Circuit.IntLib”（2分），“TI Interface Display Driver.IntLib”（2分），“八路抢答器.PcbLib”（2分）。任务三：绘制原理图（18分）绘制原理图如图8-40所示，元件属性见表8-2。图8-40 八路抢答器表8-2 八路抢答器元件属性 Library Ref （元件库名称） Library Name （库) Designator (元件标识) Footprint (封装) Comment (注释) Value (值) Header 2 Miscellaneous Connectors.IntLib P1 HDR1X2 Header 2 Res2 Miscellaneous Devices.IntLib R1—R6 AXIAL-0.3 1OK Res2 R7 AXIAL-0.3 2K Res2 R8 AXIAL-0.3 100K Res2 R9-R15 AXIAL-0.3 360 Cap Pol1 C3，C5 CAPPR2-5x6.8 100uF Cap C1，C4 RAD-0.1 104 Cap C2 RAD-0.1 103 Diode 1N4148 D1-D15 DIODE-0.4 1N4148 SW-PB S1-S9 Button（自制） 2N3904 Q1 TO-92A 9013 Speaker LS1 PIN2 Dpy Blue-CC DS1 SEG（自制） LM555J NSC Analog Timer Circuit.IntLib U1 J08A LM555J SN54LS48J TI Interface Display Driver.IntLib U2 J016 CD4511 项目三：制作八路抢答器PCB图（50分）任务一：新建PCB文件（10分）利用向导或手工新建一个PCB文件“八路抢答器.PcbDoc”（2分）。要求：（1）单位选择“Imperial”。（2分）（2）电路板为双面板。（2分）（3）电路板形状为方形，电路板尺寸3100mil×4100mil，禁止电气边界尺寸为3000mil×4000mil，并且标注尺寸。（4分）任务二：加载网络表并手工布局（16分）任务三：设置布线规则（10分）（1)线宽规则。（6分） ①设定VCC网络的线宽为30mil，GND网络的线宽为40mil，其余信号线线宽15mil。 ②设定GND的优先级最高，VCC依次降低，其余信号线优先级最低。（2）布线层规则。选中Bottom Layer和Top Layer，双面布线。（2分）（3）布线拐角模式：Rounded。（2分）任务四：自动布线（10分）先进行电源线和地线的预处理布线，然后进行全局布线。任务五：后续处理（4分）给电路图中所有焊盘补泪滴（2分）和覆铜（2分）。

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flask中配置secret_key时app.config["SECRET_KEY"]的值可以是任意字符串。

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测定浸出毒性的水平振荡法,采用的浸出容器是( )。

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曾国藩认为治乱世当用重典。

A . 正确
B . 错误

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民族传统体育的功能是什么？

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For this part, you are allowed 30 minutes to write a composition on the topic: Online Shopping according to the following outline (given in Chinese). Your composition should be no less than 120 words. Remember to write your composition on the Answer Sheet 1 clearly and neatly.1. 网上购物是随着信息技术的发展而出现的新事物，而且越来越深入人们生活的各个方面。2．网上购物给人们带来了很多方便，但是也存在很多潜在的危害消费者利益的因素。3．请结合实际谈谈消费者应该如何在网上购物的过程中保护自己的权益。

A.B.网上购物给人们带来了很多方便，但是也存在很多潜在的危害消费者利益的因素。C.请结合实际谈谈消费者应该如何在网上购物的过程中保护自己的权益。

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患者，男，26岁。近1个月来兴高采烈，话多，自觉脑子聪明，整日忙碌不停。精力旺盛，举止轻浮，好接近异性，食欲亢进，睡眠减少，无疲倦感。其主要表现为（）。

A . 本能活动增加
B . 协调性精神运动性兴奋
C . 不协调性精神运动性兴奋
D . 激情状态
E . 非器质性失眠

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下列哪种动物发育过程为半变态：（）。

A、蜻蜓
B、苍蝇
C、蝴蝶
D、蜜蜂

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金属抱杆，整体弯曲超过杆长的（），局部弯曲严重、磕瘪变形、表面腐蚀、裂纹或脱焊不得使用。

A.1/500
B.1/600
C.1/400
D.1/300

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女性，68岁，肥胖。查体X线胸片发现左上肺包块。既往有高血压病史10年，糖尿病3年，平时用药不规范。查体：T36.7℃，P108次/分，R18次/分，BP180/110mmHg。空腹血糖：13.6mmol/L；心电图：心肌轻度缺血。临床诊断左侧肺癌，拟在全麻下行左上肺叶切除术。术中的处理，不正确的是（）

A.维持循环稳定，避免血压大的波动 B.加强呼吸管理，维持氧分压、二氧化碳分压和pH在正常范围 C.术中可用机械方法（如间歇充气加压装置）预防静脉血栓形成 D.术中不输葡萄糖，避免血糖升高 E.术中根据血糖监测结果，静脉输注胰岛素控制血糖在适当水平

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关于Cache的3种基本映射方式，下面叙述中错误的是（）。

A.Cache的地址映射有全相联、直接、多路组相联等3种基本映射方式 B.全相联映射方式，即主存单元与Cache单元随意对应，线路过于复杂，成本太高 C.多路组相联映射是全相联映射和直接映射的一种折中方案，有利于提高命中率 D.直接映射是全相联映射和组相联映射的一种折中方案，有利于提高命中率

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什么叫稠油？其开采方式是什么？

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People living on parts of the south coast of England face a serious problem. In 1993, the owners of a large hotel and of several houses discovered, to their horror, that their gardens had disappeared overnight. The sea had eaten into the soft limestone cliffs on which they had been built. While experts were studying the problem, the hotel and several houses disappeared altogether, sliding down the cliff and into the sea. Erosion (侵蚀) of the white cliffs along the south coast of England has always been a problem but it has become more serious in recent years. Dozens of homes have had to be abandoned as the sea has crept farther and farther inland. Experts have studied the areas most affected and have drawn up a map for local people, forecasting the year in which their homes will be swallowed up by the hungry sea. Angry owners have called on the government to erect sea defenses to protect their homes. Government surveyors have pointed out that in most cases, this is impossible. New sea walls would cost hundreds of millions of pounds and would merely make the waves and currents go further along the coast, shifting the problem from one area to another. The danger is likely to continue, they say, until the waves reach an inland area of hard rock which will not be eaten as limestone is. Meanwhile, if you want to buy a cheap house with an uncertain future, apply to a house agent in one of the threatened areas on the south coast of England. You can get a house for a knockdown price but it may turn out to be a knockdown home.

People living on parts of the south coast of England face a serious problem. In 1993, the owners of a large hotel and of several houses discovered, to their horror, that their gardens had disappeared overnight. The sea had eaten into the soft limestone cliffs on which they had been built. While experts were studying the problem, the hotel and several houses disappeared altogether, sliding down the cliff and into the sea.
Erosion (侵蚀) of the white cliffs along the south coast of England has always been a problem but it has become more serious in recent years. Dozens of homes have had to be abandoned as the sea has crept farther and farther inland. Experts have studied the areas most affected and have drawn up a map for local people, forecasting the year in which their homes will be swallowed up by the hungry sea.
Angry owners have called on the government to erect sea defenses to protect their homes. Government surveyors have pointed out that in most cases, this is impossible. New sea walls would cost hundreds of millions of pounds and would merely make the waves and currents go further along the coast, shifting the problem from one area to another. The danger is likely to continue, they say, until the waves reach an inland area of hard rock which will not be eaten as limestone is. Meanwhile, if you want to buy a cheap house with an uncertain future, apply to a house agent in one of the threatened areas on the south coast of England. You can get a house for a knockdown price but it may turn out to be a knockdown home.

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下列哪位是人力资源管理的行为主义时代的代表人物（）

A.泰勒B.法约尔C.梅奥D.霍桑

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