窦性心律的心电图表现必须具备

【名词&注释】

心电图(electrocardiogram)、社会福利(social welfare)、社会保障制度(social security system)、社会保险(social insurance)、社会保障体系(social security system)、核心内容(core content)、右心房(right atrium)、婚姻法规(marital laws)

[单选题]窦性心律的心电图表现必须具备

A. 各导联均可见P波，P波在Ⅰ、Ⅱ、aVF、V5、V6导联应直立，在aVR导联应倒置，PR间期应0.12秒
B. 各导联均可见P波，P波在Ⅰ、Ⅱ、aVF导联应倒置，在aVR导联应直立，PR间期0.12秒
C. 各导联可见倒置P波，PR间期0.12秒
D. 各导联均可见P波，在I、aVL导联倒置，aVR导联直立，PR间期≤0.12秒
E. 各导联P波消失，RR间期正常、相等

查看答案&解析 点击获取本科目所有试题

举一反三：

[单选题]社会保障制度的核心内容^{(core content)}是（ ）

A. 社会保险
B. 社会救济
C. 社会福利
D. 优抚安置

[单选题]我国婚姻法规^{(marital laws)}定，“子女可以随父姓，也可以随母姓”。这一规范属于

A. 任意性规范
B. 非确定性规范
C. 准用性规范

[单选题]Text 3When it comes to the slowing economy, Ellen Spero isn’t biting her nails just yet. But the 47-year-old manicurist isn’t cutting, filling or polishing as many nails as she’d like to, either. Most of her clients spend $12 to $50 weekly, but last month two longtime customers suddenly stopped showing up. Spero blames the softening economy. “I’m a good economic indicator,” she says. “I provide a service that people can do without when they’re concerned about saving some dollars.” So Spero is downscaling, shopping at middle-brow Dillard’s department store near her suburban Cleveland home, instead of Neiman Marcus. “I don’t know if other clients are going to abandon me, too” she says.

Even before Alan Greenspan’s admission that America’s red-hot economy is cooling, lots of working folks had already seen signs of the slowdown themselves. From car dealerships to Gap outlets, sales have been lagging for months as shoppers temper their spending. For retailers, who last year took in 24 percent of their revenue between Thanksgiving and Christmas, the cautious approach is coming at a crucial time. Already, experts say, holiday sales are off 7 percent from last year’s pace. But don’t sound any alarms just yet. Consumers seem only concerned, not panicked, and many say they remain optimistic about the economy’s long-term prospects, even as they do some modest belt-tightening. Consumers say they’re not in despair because, despite the dreadful headlines, their own fortunes still feel pretty good. Home prices are holding steady in most regions. In Manhattan, “there’s a new gold rush happening in the $4 million to $10 million range, predominantly fed by Wall Street bonuses,” says broker Barbara Corcoran. In San Francisco, prices are still rising even as frenzied overbidding quiets. “Instead of 20 to 30 offers, now maybe you only get two or three,” says john Deadly, a Bay Area real-estate broker. And most folks still feel pretty comfortable about their ability to find and keep a job. Many folks see silver linings to this slowdown. Potential home buyers would cheer for lower interest rates. Employers wouldn’t mind a little fewer bubbles in the job market. Many consumers seem to have been influenced by stock-market swings, which investors now view as a necessary ingredient to a sustained boom. Diners might see an upside, too. Getting a table at Manhattan’s hot new Alain Ducasse restaurant need to be impossible. Not anymore. For that, Greenspan & Co. may still be worth toasting. 第51题：By “Ellen Spero isn’t biting her nails just yet”(Line 1, Paragraph 1), the author means

A. Spero can hardly maintain her business.
B. Spero is too much engaged in her work.
C. Spero has grown out of her bad habit.
D. Spero is not in a desperate situation.

本文链接：https://www.zhukaozhuanjia.com/download/edxy7n.html