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问题 单项选择题

下列哪项不是重症肌无力的临床特征

A．呼吸肌麻痹是重症肌无力的常见死因

B．短暂用力后肌力增强，持续收缩后又出现病态疲劳

C．感染、妊娠和月经前常导致疾病恶化

D．受累肌肉的病态疲劳多于下午或傍晚劳累后加重，早晨和休息后减轻

E．严重时可出现肢体无力，一般上肢重于下肢，近端重于远端

答案

参考答案：B

单项选择题

People are indulging in an illusion whenever they find themselves explaining at a cocktail (鸡尾酒) party, say, that they are "in computers," or "in telecommunications," or "in electronic funds transfer". The implication is that they are part of the high-tech world. Just between US, they usually aren’t. The researchers who made fundamental breakthroughs in those areas are in a high-tech business. The rest of us are （） of their work. We use computers and other new technology components to develop our products or to organize our affairs. Because we go about this work in teams and projects and other tightly knit working groups(紧密联系在一起的工作小组), we are mostly in the human communication business. Our successes stem from good human interactions by all participants in the effort, and our failures stem from poor human interactions.

The main reason we tend to focus on the（）rather than the human side of the work is not because it’s more（）, but because it’s easier to do. Getting the new disk drive installed is positively trivial compared to figuring out why Horace is in a blue funk (恐惧) or why Susan is dissatisfied with the company after only a few months. Human interactions are complicated and never very crisp (干脆的, 干净利落的) and clean in their effects, but they matter more than any other aspect of the work.

If you find yourself concentrating on the（）rather than the（）, you’re like the vaudeville character (杂耍人物) who loses his keys on a dark street and looks for them on the adjacent street because, as he explains, "The light is better there!".

The rest of us are（）of their work.

A．creators

B．innovators

C．appliers

D．inventors
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单项选择题

关于保险合同的无效和终止，下列说法不正确的是( )。

A．被保险人没有如期缴纳保险费，保险人有权使合同无效

B．保险合同会因双方解除而导致终止，主要包括法定解除、约定解除和自然解除

C．约定解除习惯上称为协议注销，保险合同一旦注销，保险人的责任就告终止

D．保险标的的灭失或被保险人的死亡将导致保险合同终止
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