[单项选择] In 1997, devotees of home electronics eagerly awaited the DVD player, a new device that could play movies without videotape, and with greater clarity. It caught on even faster than CD music players and within four years, DVD movies surpassed VHS tapes in sales. The DVDs success is just one example of a historic shift from analog to digital technologies. They began with computing and are now spreading to industries from banking to publishing. Products and services are shedding the limits of their physical form to become encoded information that never degrades, can be reproduced perfectly and distributed around the world in minutes, or less. Another example is photography: by the end of this year, the number of images captured digitally each day is expected to surpass the number of images captured on film. With digital cameras and other devices linked to personal computers, we can collect vast amounts of data, which fortunately takes up little or no closet space. Today’’s average
A. ignorance of the technology
B. robust economic growth
C. the economic realities of its practicality
D. economic problems of hi-tech companies

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[单项选择]产科最严重的并发症是
A. 产后出血
B. 胎膜早破
C. 子宫破裂
D. 脐带脱垂
E. 羊水栓塞

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[单选题]高温天气是指地市级以上气象主管部门所属气象台站向公众发布的日最高气温（）℃及以上的天气。
A.40
B.38
C.37
D.35

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[单选题]有限空间作业应选用( )安全带。
A.A: 半身式
B.B: 全身式
C.C: 围杆作业
D.D: 区域限制

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[单项选择] That question "why women live longer than men" can be answered at two levels. An evolutionary biologist would tell you that it is because women get evolutionary bonus points from living long enough to help bring up the grandchildren. Men, by contrast, wear themselves out competing for the right to procreate in the first place. That is probably true, but not much help to the medical profession. However, a group of researchers at John Moores University has just come up with a medically useful answer. It is that while 70-year-old men have the hearts of 70-year-olds, those of their female peers resemble the hearts of 20-year-olds. David Goldspink and his colleagues looked at 250 volunteers aged between 18 and 80 over two years. All the volunteers were healthy but physically inactive. The team’’s principal finding was that the power of the male heart falls by 20-25% between the ages of 18 and 70, while that of the female heart remains undiminished. They found that between the age
A. men can’’t recover lost heart function in any way
B. men can recover lost heart function at any age
C. proper exercise does good to the heart at any age
D. it’’s too late to start exercise when men are getting old

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[简答题]斑蝥怎样炮制？操作时应注意什么问题？生斑蝥为什么有毒不能内服？炮制能降低毒性的原理是什么？

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[多选题]接触网修复过程中,对接触网( )等关键部位要严格把关,确认符合供电行车条件后方准申请送电
A. 主导电回路
B. 承力索、导线
C. 附加悬挂
D. 受电弓动态包络线

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[单选题] 垂直防火分区,就是将具有()耐火极限的楼板和窗间墙(两上、下窗之间的距离不小于2m)将上下层隔开
A. 2h或2.5h
B. 1.5h或2h
C. 1h或1.5h
D. 0.5h或1h

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[单选题]常用于碱化尿液，促进毒性药物排泄的是 (单选题)
A. 苯巴比妥
B. 磺胺醋酰
C. 麻黄碱
D. 碳酸氢钠
E. 氯化铵

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[单选题]分散自律控制模式是通过调度集中设备，实现进路自动和人工办理的模式( )PJ98(0.01分)
A.√
B.×

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[多选题]遂行高海拔山地救援任务，行动前准备主要包括(　　)
。
A. 营地选择
B. 携行卫勤
C. 应急通信
D. 防寒保暖

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