题目内容

案例：某公路工程施工中，施工单位在路面无机结合料稳定基层施工过程中，出现以下情况：(1)由于本工程的路面属高级路面，所以采用粉煤灰稳定细粒土做该路面的基层。(2)在选择水泥时，施工单位选择了终凝时间较短的水泥。(3)经检测，该工程中使用的粉煤灰中SiO2、Al2O3和Fe2O3的总含量为80%。(4)该公路设计为一级公路，经测定，该工程中的石灰粉煤灰稳定类基层的压实度为99%，7d抗压强度为0.6MPa；底基层使用的是中粒土，压实度为95%，7d抗压强度为0.6MPa。(5)该工程采用集中厂拌法施工，在设计水泥剂量时，按配合比试验确定的剂量增加1%的剂量来确定的。该工程采用粉煤灰稳定细粒土做基层是否正确不能用作高级路面基层的无机结合料有哪些

查看答案

搜索结果不匹配？点我反馈

更多问题

案例：某公路工程施工中，施工单位在路面无机结合料稳定基层施工过程中，出现以下情况：(1)由于本工程的路面属高级路面，所以采用粉煤灰稳定细粒土做该路面的基层。(2)在选择水泥时，施工单位选择了终凝时间较短的水泥。(3)经检测，该工程中使用的粉煤灰中SiO2、Al2O3和Fe2O3的总含量为80%。(4)该公路设计为一级公路，经测定，该工程中的石灰粉煤灰稳定类基层的压实度为99%，7d抗压强度为0.6MPa；底基层使用的是中粒土，压实度为95%，7d抗压强度为0.6MPa。(5)该工程采用集中厂拌法施工，在设计水泥剂量时，按配合比试验确定的剂量增加1%的剂量来确定的。设计水泥剂量的确定是否下确如不正确，写出正确的。

Smokers’ cardiovascular systems adapt to ______.

Questions 66-71 are based on the following passage. Laziness is a sin, everyone knows that. We have probably all had lectures pointing out that laziness is immoral, that it is wasteful, and that lazy people will never amount to anything in life. But laziness can be more harmful than that, and it is often caused by more complex reasons than simple wish to avoid work. Some people who appear to be lazy are suffering from much more serious problems. They may be so distrustful of their fellow workers that they are unable to join in any group task for fear of ridicule or fear of having their ideas stolen. These people who seem lazy may be paralyzed by a fear of failure that prevents fruitful work. Or other sorts of fantasies may prevent work; some people are so busy planning, sometimes planning great deals or fantastic achievements, which they are unable to deal with whatever "lesser" work is on hand. Still other people are not avoiding work; strictly speaking, they are merely procrastinating--rescheduling their day. Nevertheless, laziness can actually be helpful. Like procrastinators, some people may look lazy when they are really thinking, planning, contemplating, researching. We should all remember that some great scientific discoveries occurred by chance or while someone was "goofing off’. Newton wasn’t working in the orchard when the apple hit him and he devised the theory of gravity. All of us would like to have someone "lazy" build the car or stove we buy, particular if that job right. And sometimes being "lazy" --that is, taking time off for a rest--is good for the overworked student or executive. Taking a rest can be particular helpful to the athlete who is trying too hard or the doctor who’s simply working himself overtime too many evenings at the clinic. So be careful when you’re tempted to call somebody lazy. That person may be thinking, or planning his next book. ______ The writer concludes that the word laziness is sometimes applied incorrectly.

在现代社会很难划出个体成年的绝对界限。 ( )

A. 对
B. 错