单选题
下列选项中，对建筑石灰的特性和技术要求叙述不正确的是（）。
发布日期：2021-03-18
硬化时体积收缩大
硬化快
耐水性差
硬化后强度低
试题解析
体积收缩
体积收缩（volume shrinkage）是2019年公布的冶金学名词，出自《冶金学名词》第二版。
- 中文名
- 体积收缩
- 所属学科
- 冶金学
- 外文名
- volume shrinkage
- 公布时间
- 2019年
耐水性
耐水性是指材料抵抗水破坏的能力，通常用软化系数来表示材料的耐水性，耐水性强的材料的力学性能不易降低。
- 中文名
- 耐水性
- 定义
- 材料抵抗水破坏的能力
- 试验
- 耐水性试验、耐水性加速试验
- 外文名
- water resistance
- 表示
- 软化系数
- 学科
- 土木、建筑
硬化
硬化，读音：yìnghuà，词义：指物体由软变硬的一种过程。1.通过改变材质使物体由软变硬。如路面硬化。2.因为发生病变使物体由软变硬。如动脉硬化、肝硬化等。
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Many visitors to the United Kingdom go straight to London and never set foot outside the capital—which is a pity, for those that do are often surprised at the sheer variety of landscapes 1 within such a small geographical area. 2 you want to see stunning, unspoilt scenery you should 3 spend a few days in one of Britain"s largest areas of protected countryside, a national park. 4 in the second half of the 20 th century after popular pressure for access 5 the country"s wilder places, there are now 15 of them throughout the British Isles. The biggest is the Cairngorms in northern Scotland, named 6 some of the country"s highest mountains and the best place for skiing. Pony-trekking, climbing and fishing are also 7 , along with Scotland"s national game, golf. 8 enthusiasts are well rewarded—this is the home of the red deer, red squirrel and golden eagle, If you don"t like the 9 to the highest point, some 2000 metres 10 sea level, you can take the railway 11 gets you to the summit in less than ten minutes. 12 the west of the park is another popular natural 13 , Loch Ness. The lake is over 200 metres 14 in places, and salmon, trout and eels are in abundance here. Over the border in England is the Lake District, 15 made famous by Romantic poets such as William Wordsworth two hundreds years ago. People have been 16 here en masse since 1847 17 a railway was built to its biggest lake, Windermere. 18 in the past boats plied its waters 19 stone, timber and wood, today"s craft are more likely to carry 20 on pleasure cruises—over a million a year, in fact.
根据金融集团中是否包括不同金融业务，可分为（）
蒲黄炒炭应注意（）
对于级配连续的土，（）级配良好。
下列胶体溶液带负电荷的有（）
职业、职业生涯与指也生涯管理的含义。
（）是指船舶出租人向承租人提供不配备船员的船舶，在约定的期间内由承租人占有、使用和营运，并向出租人支付租金的租船方式。
根据有关旅游法规，下列导游人员的行为中，属于由省、自治区、直辖市人民政府旅游行政管理部门吊销导游证并予以公告的有（）。
营运中检验包括下列检验（）
癌性肌无力综合症的主要发病机制是（）。