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下列选项不是血管内金属支架成形术的适应证的是()。
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引导——发现教学模式可使学生学会如何学习,适用于任何学科的教学。
高血压高血脂患者,服用药物后,经检查发现肝功能异常,则该药物是()
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请阅读Passage 2,完成第 26~30小题。Passage 2For centuries in Spain and Latin America, heading home for lunch and a snooze with the family was some thing like a national right, but with global capitalism standardizing work hours, this idyllic habit is fast becoming an endangered pleasure. Ironically, all this is happening just as researchers are beginning to note the health benefits of the afternoon nap.According to a nationwide survey, less than 25 percent of Spaniards still enjoy siestas. And like Spain, much of Latin America has adopted Americanized work schedules, too, with shortened lunch times and more rigid work hours. Last year the Mexican government passed a law limiting lunch breaks to one hour and requiring its employees to work their eight-hour shift between 7 a.m. and 6 p.m. Before the mandate, workers would break up the shift-going home midday for a long break with the family and returning to work until about 9 or 10 p.m. The idea of siesta is changing in Greece, Italy and Portugal, too, as they rush to join their more "industrious" counterparts in the global market.Most Americans I know covet sleep, but the idea of taking a nap mid-afternoon equates with laziness, un employment and general sneakiness. Yet according to a National Sleep Survey poll, 65 percent of adults do not get enough sleep. Numerous scientific studies document the benefits of nap taking, including one1997 study on the deleterious effects of sleep deprivation in the journal Internal Medicine. The researchers found that fatigue harms not only marital and social relations but worker productivity.According to Mark Rosekind, a former NASA scientist and founder of Solutions in Cupertino, Calif., which educates businesses about the advantages of sanctioning naps, we're biologically programmed to get sleepy between 3 and 5 p.m. and 3 and 5 a.m. Our internal timekeeper-called the circadian clock-operates on a 24-hour rotation and every 12 hours there's a dip. In accordance with these natural sleep rhythms, Rosekind recommends that naps be either for 40 minutes or for two hours. Latin American countries, asserts Rosekind, have had it right all along. They've been in sync with their clocks; we haven't.Since most of the world is sleep-deprived, getting well under the recommended eight hours a night (adults get an average of 6.5 hours nightly), we usually operate on a kind ofidle midday. Naps are even more useful now that most of us forfeit sleep because of insane work schedules, longer commute times and stress, In a study published last April, Brazilian medical researchers noted that blood pressure and arterial blood pressure dropped during a siesta.We can infer from the second paragraph that Mexican workers now ____.
某一个交易日某只股票的开盘价为10元,最高价为10元,最低价为9元,收盘价为9.5元,则当日的K线应为( )。
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对视锥细胞的叙述,错误的是()
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在0.67米距离作检影验光,中和镜度为+1.00DS/-0.75DC*90,该眼的光状态是()散光。
在0.67米距离作检影验光,中和镜度为-0.75DC*90,该眼的屈光状态是()散光。
现有一处为R:-1.00DS,L:-1.00DS,Add3.00要制作半框眼镜应选用()。
-2.25DS与+0.75DC×90联合后的光度为-1.50DS/-0.75DC×180。
验光中,用±0.25DC交叉柱镜对-3.00DS/-0.75DC*90镜度作轴向调试翻转交叉柱镜两面,其中交叉柱镜的正轴在45的一面视力提高,应将测试的()。
验光中,用±0.25DC的交叉柱镜对-3.00DS/-0.75DC*90镜度作调试,若将交叉柱镜的负轴与所测轴重合被检者视力提高,应将镜度调整为()。
验光处方:+1.25DS/+0.75DC*90所反映的是()屈光状态。
焦度计检测球镜顶焦度为12.00~20.00DS,柱镜顶焦度≥0.00~0.75DC镜片的国标允差为()。
焦度计检测球镜顶焦度值为0.00~3.00DS,柱镜顶焦度为0.00~0.75DC镜片的国标允差是()。
焦度计检测球镜顶焦度值为3.00~6.00DS,柱镜顶焦度为≦0.00~0.75DC镜片的国标允差为()。