试题与答案

木材的容量:天然木材单位体积的(),容重与含水率有关,含水率越高,容重越大。一般以含

题型:填空题

题目:

木材的容量:天然木材单位体积的(),容重与含水率有关,含水率越高,容重越大。一般以含水率为()时容重作为标准容重,单位是千克/立方米

答案:

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参考答案:A解析: 加快经济转型升级,改革开放是根本动力。

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题型:多项选择题 案例分析题

患者女,28岁,因“发热、胸闷1个月余,加重伴咯血1天”来诊。患者系统性红斑狼疮(SLE)病史10年,1周前曾于外院应用抗生素和激素治疗,症状一过性好转。发病以来无明显咳嗽、咳痰,最高体温38.5℃。查体:体温38.1℃,心率115次/分,血压92/60mmHg(1mmHg=0.133kPa),呼吸32次/分,储氧面罩吸氧10L/min,动脉血氧饱和度96%。听诊双肺呼吸音对称增粗,肺底可闻及少量湿啰音。

为明确诊断应尽快完善的检查包括(提示患者在外院诊疗10天,期间予泼尼松500mg×5天、环磷酰胺具体剂量不详,同时应用亚胺培南西司他丁钠(泰能)、氟康唑(大扶康)抗感染治疗。激素冲击结束后患者体温正常,胸闷症状改善,但3天后,症状再次加重并出现咯血。)()。

A.降钙素原(PCT)、G试验

B.血气分析

C.ANA、dsDNA

D.免疫球蛋白、补体

E.痰培养

F.血、尿、粪常规

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题型:单项选择题

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Of the many over-the-counter medications marketed for the relief of sinus headache, SineEase costs the least per dose. And SineEase is as effective per dose as the most effective of those other medications. So for relief from sinus headaches, SineEase is the best buy.
Which of the following, if true, most seriously weakens the argument above

A.Most of the over-the-counter medications marketed for the relief of sinus headache are equally effective per dose in providing such relief.

B.Many of the over-the-counter medications marketed for the relief of sinus headache contain the same active ingredient as SineEase.

C.People who suffer from frequent sinus headaches are ply advised to consult a doctor before taking any over-the-counter medication.

D.An over-the-counter medication that is marketed for the relief of symptoms of head cold is identical in composition to SineEase but costs less per dose.

E.(E) The per dose price for any given over-the-counter medication marketed for the relief of sinus headache is higher for smaller packages than it is for larger packages.

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题型:单项选择题

关于预应力构件有如下几种意见,试判断其中()项正确,并简述其理由。

A.预应力构件有先张和后张两种方法,但无论采用何种方法,其预应力损失值的计算方法相同

B.预应力构件的延性和耗能能力较差,所以可用于非地震地区和抗震设防烈度为6度、7度和8度的地区;若设防烈度为9度的地区采用时,应有充分依据,并采取可靠的措施

C.假定在抗震设防烈度为8度地区有两根预应力框架梁,一根采用后张无黏结预应力,另一根采用后张有黏结预应力;当地震发生时,二者的结构延性和抗震性能相同

D.某8度抗震设防地区,在不同抗震等级的建筑中有两根后张预应力混凝土框架梁。其抗震等级分别为一级和二级;按规范规定,两根梁的预应力强度比限值不同,前者大于后者

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