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定性诊断考虑为（）。| The biggest safety threat facing
airlines today may not be a terrorist with a gun, but the man with the portable
computer in business class. In the last 15 years, pilots have reported well over
100 incidents that could have been caused by electromagnetic interference. The
source of this interference remains unconfirmed, but increasingly, experts are
pointing the blame at portable electronic devices such as portable computers,
radio and cassette players and mobile telephones. RTCA, an organization which advises the aviation (航空) industry, has recommended that all airlines ban (禁止) such devices from being used during "critical" stages of flight, particularly take-off and landing. Some experts have gone further, calling for a total ban during all flights. Currently, rules on using these devices are left up to individual airlines. And alt A. they don’t believe there is such a danger as radio interference B. the harmful effect of electromagnetic interference is yet to be proved C. most passengers refuse to take a plane which bans the use of radio and cassette players D. they have other effective safety measures to fall back on [填空题]烟道漏风灰是烟气量增加,会增加系统的_(1)_,降低系统运行的经济性。()
[单选题]下述物理量中，反映空气容纳水汽的能力的量是：
A.饱和水气压 B.实际水汽压 C.相对湿度 D.露点温度 [判断题]在税收征管模式中，“重点稽查”中的“重点”的含义就是要求税务机关对每个纳税人都要进行检查。
[多选题]扑救液化石油气火灾时应注意（）。
A.受理火警时，要问清火灾发生的具体情况 B.选择正确停车位置 C.在警戒区域内最大限度地减少人员数量 D.灭火后要彻底清查火场，消除危险因素，防止复燃复爆 [判断题]接地线用绿/黄双色表示。 ( )
A.正确 B.错误 [单项选择]当含有不同熔点基质，在常温下不能均匀混合时，应采用（）
A. 搅拌混合法 B. 乳化法 C. 熔和法 D. 加液研磨法 E. 研和法制备软膏 [多项选择]防火涂料应具备的基本功能有（ ）。
A. 锅炉汽包 B. 压力容器 C. 起重机轨道 D. 压力管道 E. 高强螺丝 [多选题]施工安全基本规定，没有（ ）不准施工。
A.施工检查员 B.施工计划 C.安全措施 D.调度命令 [判断题]垂直法超声波探伤，检出效果最佳的缺陷是与探测面平行的缺陷。（ ）
A.正确 B.错误 [单项选择]消心痛治疗心绞痛作用原理是
A. 减慢心率、降低心肌收缩力、减少心肌耗氧量 B. 通过抑制钙离子进入冠脉、周围血管壁平滑肌细胞内而扩张冠脉及周围血管 C. 抑制血小板聚集 D. 改善心肌营养与代谢 E. 扩张冠脉及外周血管，减轻心脏负担 我来回答: 提交
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