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问题 单项选择题

垂直放置的矩形平板，一侧挡水，该平板由置于上、下边缘的拉杆固定，则拉力之比T1／T2应为（）

A.1／4

B.1／3

C.1／2

D.1

答案

参考答案：C

解析：总压力P作用在距水面2／3水深处。

多项选择题

女，38岁，低热，腹胀5个月。营养状态略差，腹部膨隆，肝脾未触及，脐周触及 3～4cm大小包块，质地中等，边界不清，轻度触痛，移动性浊音可疑阳性，PPD皮试阳性。疑诊结核性腹膜炎，可行下列哪些检查

A．腹部B超

B．X线钡剂灌肠

C．腹腔穿刺

D．腹腔镜检查
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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 (11) 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 group(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 (12) rather than the human side of work is not because it’s more (13) , but because it’s easier to do. Getting the new disk drive installed is positively trivial compared to figurine out why Horace is in a blue funk(恐惧)or why Susan is dissatisfied with the company aver 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 (14) rather than the (15) , 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!\

A．technical

B．classical

C．social

D．societal
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