更多“房性早搏的心电图特点是（）。”相关的问题
在整流变压器空载且电源电压过零时一次侧切断电源时，可在二次侧感应出正常（）以上的瞬间过电压。
A.有效电压六倍
B.峰值电压六倍
C.峰值电压三倍
D.有效电压三倍
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为保证质量，焊前应将焊条烘焙，酸性焊条烘焙的温度是（）。
A.550℃
B.150℃
C.450℃
D.300℃
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以下哪项不是诱发新生儿出血症的原因（）
A . A.感染
B . B.腹泻
C . C.新生儿肝炎综合征
D . D.新生儿溶血病
E . E.孕母患结核用利福平治疗
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关于散文《松堂游记》说法错误的是( )。
A.作者注意使用口语词汇与句式
B.作者并不排斥文言词语和文言句法的融入
C.在通俗的语言中努力营造一种情韵
D.情韵空灵缥缈，读者不易把握
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如图所示，三角块固定在地面上，倾角θ=30°。匀质圆轮A、B半径都为r，质量都为m，物块D质量也为m。轮A在力偶M=mgr作用下逆时针定轴转动，带动B、D运动，细绳不打滑，轮B在斜面上纯滚动，求物块D上升的加速度（）。
如图所示，三角块固定在地面上，倾角θ=30°。匀质圆轮A、B半径都为r，质量都为m，物块D质量也为m。轮A在力偶M=mgr作用下逆时针定轴转动，带动B、D运动，细绳不打滑，轮B在斜面上纯滚动，求物块D上升的加速度（）。
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根据车船税法律制度的规定，下列车船中，免征车船的有（）。
\tA．在农业部门登记的拖拉机
\tB．无轨电车
\tC．武警专用车辆
\tD．远洋货船
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在信息沟通过程中，常常存在信息“盲点”，如果建立全方位信息沟通网络，则可有效地消除这种现象
A . 正确
B . 错误
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验电时，必须用电压等级合适而且合格的验电器，在检修设备（）验电。
A.高低压两侧
B.断路器两侧分别
C.进出线两侧各相分别
D.工作地点两侧分别
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The robots are coming. The second decades of the 21th century will see the rise of merchandized army...The advancement in robotics mentioned in the first two paragraphs is to show robots can______.
A．accelerate the development of the social media
B．make private and public life more interesting
C．reduce the unemployment rate
D．dominate our furture
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销售百分比法主要用于编制预计资产负债表以及需要筹措资金的预测，其步骤是
A . 要扣除其中的金融资产（包括货币资金和交易性金融资产）和金融负债B . 计算各资产负债项目占销售百分比C . 计算计划期销售额预测数D . 计算新增外部融资额
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Passage Four The Supreme Court’s decisions on physician-assisted suicide carry important implications for how medicine seeks to relieve dying patients of pain and suffering. Although it ruled that there is no constitutional right to physician-assisted suicide, the Court in effect supported the medical principle of "double effects" a centuries-old moral principle holding that an action having two effects — a good one that is intended and a harmful one that is foreseen- is permissible if the actor intends only the good effect. Doctors have used that principle in recent years to justify using high doses of morphine to control terminally ill patients’ pain, even though increasing dosages will eventually kill the patient. Nancy Dubler, director of Montefiore Medical Center, contends that the principle will shield doctors who "until now have very, very strongly insisted that they could not give patients sufficient medication to control their pain if that might hasten death." George Annas, chair of the health law department at Boston University, maintains that, as long as a doctor prescribes a drug for a legitimate medical purpose, the doctor has done nothing illegal even if the patient uses the drug to hasten death. "It’s like surgery," he says. "We don’t call those deaths homicides because the doctors didn’t intend to kill their patients, although they risked their death. If you’re a physician, you can risk your patient’s suicide as long as you don’t intend their suicide." On another level, many in the medical community acknowledge that the assisted-suicide debate has been fueled in part by the despair of patients for whom modern medicine has prolonged the physical agony of dying. Just three weeks before the Court’s ruling on physician-assisted suicide, the National Academy of Science (NAS) released a two-volume report, Approaching Death: Improving Care at the End of Life. It identifies the under treatment of pain and the aggressive use of "ineffectual and forced medical procedures that may prolong and even dishonor the period of dying" as the twin problems of end-of-life care. The profession is taking steps to require young doctors to train in hospices, to test knowledge of aggressive pain management therapies, to develop a Medicare billing code for hospital-based care, and to develop new standards for assessing and treating pain at the end of life. Annas says lawyers can play a key role in insisting that these well-meaning medical initiatives translate into better care. "Large numbers of physicians seem unconcerned with the pain their patients are needlessly and predictably sufferings" to the extent that it constitutes "systematic patient abuse." He says medical licensing boards "must make it clear...that painful deaths are presumptively ones that are incompetently managed and should result in license suspension.\
The Supreme Court’s decisions on physician-assisted suicide carry important implications for how medicine seeks to relieve dying patients of pain and suffering.
Although it ruled that there is no constitutional right to physician-assisted suicide, the Court in effect supported the medical principle of "double effects" a centuries-old moral principle holding that an action having two effects — a good one that is intended and a harmful one that is foreseen- is permissible if the actor intends only the good effect.
Doctors have used that principle in recent years to justify using high doses of morphine to control terminally ill patients’ pain, even though increasing dosages will eventually kill the patient.
Nancy Dubler, director of Montefiore Medical Center, contends that the principle will shield doctors who "until now have very, very strongly insisted that they could not give patients sufficient medication to control their pain if that might hasten death."
George Annas, chair of the health law department at Boston University, maintains that, as long as a doctor prescribes a drug for a legitimate medical purpose, the doctor has done nothing illegal even if the patient uses the drug to hasten death. "It’s like surgery," he says. "We don’t call those deaths homicides because the doctors didn’t intend to kill their patients, although they risked their death. If you’re a physician, you can risk your patient’s suicide as long as you don’t intend their suicide."
On another level, many in the medical community acknowledge that the assisted-suicide debate has been fueled in part by the despair of patients for whom modern medicine has prolonged the physical agony of dying.
Just three weeks before the Court’s ruling on physician-assisted suicide, the National Academy of Science (NAS) released a two-volume report, Approaching Death: Improving Care at the End of Life. It identifies the under treatment of pain and the aggressive use of "ineffectual and forced medical procedures that may prolong and even dishonor the period of dying" as the twin problems of end-of-life care.
The profession is taking steps to require young doctors to train in hospices, to test knowledge of aggressive pain management therapies, to develop a Medicare billing code for hospital-based care, and to develop new standards for assessing and treating pain at the end of life.
Annas says lawyers can play a key role in insisting that these well-meaning medical initiatives translate into better care. "Large numbers of physicians seem unconcerned with the pain their patients are needlessly and predictably sufferings" to the extent that it constitutes "systematic patient abuse." He says medical licensing boards "must make it clear...that painful deaths are presumptively ones that are incompetently managed and should result in license suspension.\
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某化工厂扩建，厂方（业主）将维修间新建工程PC项目的建设授标A单位。A单位将车间内20吨行吊的安装工作承包给无资质的作业队B。作业队B与A单位签订合同，只约定了质量要求和承包价款。C单位为B队提供担保。在建设期间，互检中发现有3台车床的垫铁超出规范，具体如下：1号车床16组垫铁中有7组达到每组6块垫铁；2号车床12组垫铁中有2组只有一块平垫；3号车床12组垫铁中有1组斜铁翘曲。在返工后，达到了规范的要求。在行车做大车负重行走试验时，行车限位开关失灵，配重突然滑落，砸坏了一台已完成试验的铣床，造成18万元的经济损失。项目部启动质量事故程序，调查结果是由于行程开关接线质量不符合要求造成行程开关不动作而造成这起事故。后重新订购了铣床，并重新安装完毕。该事故造成项目延后70天。业主根据与A单位签订的合同，处罚了A单位7万元。A单位向B作业队提出25万元的索赔。B作业队以无力支付为由拒绝。A单位与B作业队间的合同是否有效？
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下列哪些情况不会影响脉搏血氧饱和度（SpO2）监测数值的准确性（）？
A . 低血压
B . 亚硝酸盐中毒
C . 上呼吸道感染
D . CO中毒
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做饭时家政服务员不能长时间离开火源，以免引起火灾。（）
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消防控制室应配备专职值班人员，每班不少于（）人
A.1
B.2
C.3
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