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Natural Medicines{{/B}} Since earliest days, humans have used some kinds of medicines. We know this because humans have survived. Ancient treatments for injury and disease were successful enough to keep humans from dying out completely. They were successful long before the time of modern medicine. Before the time of doctors with white coats and shiny(发亮的)instruments. Before the time of big hospitals with strange and wonderful equipment. Many parts of the world still do not have university-educated doctors. Nor do they have expensive hospitals. Yet injuries are treated. And diseases are often cured. How By ancient methods. By medicines that might seem mysterious, even magical(有魔力的). Traditional medicines are neither mysterious nor magical, however. Through A. may never be exhausted B. may be dropping rapidly C. is surprisingly big D. is as rich as ever [单项选择]国家对进口玩具实行加施（）的管理。
A. 检验检疫标签 B. 检验检疫标志 C. 检验检疫标识 D. 检验检疫标记 [单选题]时间同步装置更换硬件、升级软件时，应将本设备设置为（），更换或升级完成，经测试无误后方可投入运行。
A.检修状态 B.备用状态 C.守时状态 D.停机状态 [单选题]鸦片战争后十年，英国人发现他们仍未达到发动战争的目的，拥有庞大人口的中国，消费英国商品仍不及荷兰的一半。当时英国人将出现这一问题的原因归结于()。
A.中国自给自足的自然经济的瓦解 B.中国开放的通商口岸太少 C.中国政府给予英国最惠国待遇 D.中国人的消费水平普遍较低 [多项选择]22、下列哪些设备可制得干燥颗粒
A. 一步制粒机 B. 高速搅拌制粒机 C. 喷雾干燥制粒机 D. 摇摆式颗粒机 E. 重压法制粒机 [判断题]隔离开关熄灯巡视时重点检查隔离开关触头、引线、接头、线夹有无发热，绝缘子表面有无放电现象。
A.正确 B.错误 [简答题]
Newspaper publishers make money mainly from subscribers and advertisers. It’s been that way for centuries. But in the last few years an important new income stream has opened up for newspapers Among the pioneers is The Gazette Company in Cedar Rapids, Iowa, which since 1993 has been providing information to its readers delivered by both paper and, increasingly, the Web. "If a newspaper views itself as ink on paper, I don’t think it will survive," says Steve Hannah, vice president of information technology. [单选题]设置排烟系统的场所或部位不应采用( )等划分防烟分区
A.挡烟垂壁 B.防火水幕 C.防火隔墙 D.结构梁 [判断题]电源屏各防雷良好，防雷元件显示窗均为红色标签。（ ）
A.正确 B.错误 [多选题]产生焊瘤的原因有( )。
A. 电流过大 B.电流过小 C.焊速太快 D.焊速太慢 E.装配不当 F.熄弧过快 [判断题]迷宫密封的密封间隙越小,密封齿越多,其密封效果越好,所以实际使用中密封齿越多,密封间隙越小越好。( )
A.正确 B.错误 [单选题]LTE系统对单向用户面时延的协议要求是小于多少ms（）
A.1ms B.5ms C.10ms D.20ms [判断题]消防车的制动效能是指消防车迅速降低车速直至停车的能力。一般用制动距离和制动时间来评价。( )(难)
A.正确 B.错误 [判断题]胃十二指肠溃疡急性穿孔的早期表现为呕血、黑便。
[填空题]JZ-7型制动机作用阀由勾贝、膜板、空心阀杆、( )、管座等组成。
[判断题]使用管钳配合安装新品折角塞门。确认折角塞门角度正确。充风试验，对制动管路充风至定压（600kPa）后,结合列车制动机试验重点检查折角塞门连接处是否漏风。( )
A.正确 B.错误 [多选题]：买断式回购的（）由交易双方确定，但到期交易净价加债券在回购期间的新增应计利息应大于首期交易净价。
A.首期交易净价 B.到期交易净价 C.回购债券数量 D.交易规则 [单选题]太阳系的行星中，体积最大的是（ ）
A.土星 B.木星 C.金星 D.火星 [单选题]皮类中药折断面呈纤维状或刺状说明富有( )
A. 纤维 B. 淀粉粒 C. 石细胞群 D. 三者都有可能 [判断题]直流系统发生负极接地时,其负极对地电压降低,而正极对地电压升高。 ( )
A.正确 B.错误 [多选题]接触网作业必须在（
）完成后方可在停电设
备上作业。
A.验电 B.接地 C.巡视 D.设置防护 E.检修 我来回答: 提交
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