更多“心肌梗塞时,乳酸脱氢酶的同工酶谱增加最显著的是
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American society is not nap (午睡) friendly. In fact, says David Dinges, a sleep specialist at the University of Pennsylvania School of Medicine. "There’s even a prohibition against admitting we need sleep". Nobody wants to be caught napping or found asleep at work. To quote a proverb: "Some sleep five hours, nature requires seven, laziness nine and wickedness eleven." Wrong. The way not to fall asleep at work is to take naps when you need them. "We have to totally change our attitude toward napping", says Dr. William Dement of Stanford University, the godfather of sleep research. Last year a national commission led by Dement identified an "American sleep debt" which one member said was as important as the national debt. The commission was concerned about the dangers of sleepiness: people causing industrial accidents or falling asleep while driving. This may be why we have a new sleep policy in the White House. According to recent reports, president Clinton is trying to take a half hour snooze (打瞌睡) every afternoon. About 60 percent of American adults nap when given the opportunity. We seem to have "a midafternoon quiet phase" also called "a secondary sleep gate." Sleeping 15 minutes to two hours in the early afternoon can reduce stress and make us refreshed. Clearly, we were born to nap. We Superstars of Snooze don’t nap to replace lost shut eye or to prepare for a night shift, Rather, we "snack" on sleep, whenever, wherever and at whatever time we feel like it. I myself have napped in buses, ears, planes and on boats; on floors and beds; and in libraries, offices and museums.
A．preferable to have a sound sleep before a night shiftB．good practice to eat something light before we go to bedC．essential to make up for lost sleepD．natural to take a nap whenever we feel the need for it
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战略管理过程中最重要的环节是（）。
A . 环境评价B . 识别优劣势C . 制定或调整战略D . 实施战略
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石油润滑脂油包括（）
A.变压器油 电容器油
B.油漆溶剂油 航空洗涤器油
C.蒸空泵油 扩散泵油
D.复合钙基脂 锂基脂
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用于烫伤病人，主要用于调节电解质平衡的药物是
A.哌替啶
B.地西泮
C.含盐饮料
D.头孢呋辛
E.破伤风抗毒素
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关于病毒性肝炎不正确的是（）。
A.乙型肝炎常可见到家庭聚集现象 B.丙型肝炎慢性化高 C.甲型肝炎多见于儿童 D.乙型肝炎、丙型肝炎可重叠丁型肝炎感染 E.晚期妊娠妇女戊型肝炎病死率高
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宏观经济政策的目标包括（）。
A . 充分就业
B . 价格稳定
C . 经济持续均衡增长
D . 国际收支平衡
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贸易融资可能产生的风险包括（）
A.国家风险 B.开证行风险 C.汇率风险 D.技术性风险
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听力原文： Arab foreign ministers in Cairo on Sunday announced their countries should refus
The meeting of Arab foreign ministers in Cairo ______A．resulted in a binding resolutionB．failed to discuss a binding resolutionC．proposed a binding resolutionD．failed to pass a binding resolution
A．resulted in a binding resolutionB．failed to discuss a binding resolutionC．proposed a binding resolutionD．failed to pass a binding resolution
B．failed to discuss a binding resolutionC．proposed a binding resolutionD．failed to pass a binding resolution
C．proposed a binding resolutionD．failed to pass a binding resolution
D．failed to pass a binding resolution
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1个月小儿下列神经反射是正常的是()
A．觅食反射消失
B．腹壁反射阴性
C．提睾反射阴性
D．克氏征阳性
E．巴宾斯基征阳性
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下列属于问题解决的是（）。
A.漫无目的地幻想 B.走路 C.联想 D.发明创造
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在Internet中，网络互联采用的协议为（）。
A．ARP
B．IPX
C．SNMP
D．IP
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DRAPL带钢在炉内跑偏划伤时，应一边注意炉内带钢跑偏情况，一边可能地调节炉子（）。
A . A：张力；
B . B：温度；
C . C：速度.
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敷设电缆前，应检查电缆表面有无机械损伤；并用lkV兆欧表遥测绝缘，绝缘电阻一般不低于（）。
A . 10Mn
B . 20Mn
C . 30Mn
D . 40Mn
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