问题
多项选择题
患者男，45岁，夜寐盗汗，五心烦热，两颧潮红，口渴，舌红少苔，脉细数。对此患者病症分析正确的有
A．阴精亏损，虚火内生，热逼津液外泄故盗汗
B．虚热内蒸故见五心烦热，两颧潮红
C．阴虚有热而津液不足故见口渴
D．治宜滋阴益气
E．所选主方为当归六黄汤
答案
参考答案：A,B,C,E
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患者男，45岁，夜寐盗汗，五心烦热，两颧潮红，口渴，舌红少苔，脉细数。对此患者病症分析正确的有
A．阴精亏损，虚火内生，热逼津液外泄故盗汗
B．虚热内蒸故见五心烦热，两颧潮红
C．阴虚有热而津液不足故见口渴
D．治宜滋阴益气
E．所选主方为当归六黄汤
参考答案：A,B,C,E
Passage Four
| The question of what children learn, and how they should learn it, is continually being debated and re-debated. Nobody dares any longer to defend the old system, the learning of lessons parrot-fashion, the grammar-with-a-whip system, which was good enough for our grandparents. The theories of modem psychology have stepped into argue that we must understand the needs of children. Children are not just small adults, they are children who must be respected as such. Well, you may say, this is as it should be a good idea. But think further, what happens "Education" becomes the responsibility not of teachers but of psychologists. What happens then Teachers worry too much about the psychological implications of their lessons, and forget about the subjects themselves. If a child dislikes a lesson, the teacher feels that it is his fault, not the child’s. So teachers worry whether history is relevant to modem young children. And do they dare to recount stories about violent battles Or will this make the children themselves violent Can they tell their classes about children of different races, or will this encourage racial hatred Why teaching children to write grammatical sentences Verbal expression is better Sums Arithmetic No: real-life mathematical situations are more understandable. You see, you can go too far. Influenced by educational theories, who have nothing better to do than write book about their ideas, teachers leave their teacher-training colleges filled with grand, psychological ideas about children and their needs. They make elaborate, sophisticated preparations and try out their modem standard on the long-suffering children. Since one modem method rapidly replaces another, the floor kids will have had a good bellyful by the time they leave school. Frequently the modem methods are so sophisticated that they fail to be understood by the teachers, let alone the children. |
According to the passage, which of the following statements is NOT true
A．Neither teachers nor children can understand the modem methods.
B．Children must be understood and respected.
C．Children were made to learn passively under the old system.
D．Children are small adults and know what they need.
为了测定某品牌食用纯碱中碳酸钠的质量分数，某校化学研究性学习小组的探究过程如下：
[提出问题]样品中碳酸钠的质量分数是多少？
[知识准备]
食用纯碱的主要成分是碳酸钠，另外还含有少量的氯化钠；反应过程中不考虑水和氯化氢的挥发．
[设计方案并实验]
甲组同学：称取12.00样品，加水配成溶液，在溶液中加入过量澄清石灰水，过滤、洗涤、干燥，共得到白色沉淀10.00g．
乙组同学：称取12.00样品，加入足量的稀盐酸直到反应停止，共收集到4.4g二氧化碳．
[解决问题]
请你任选一组同学的实验结果，帮助他们计算出样品中碳酸钠的质量是______，碳酸钠的质量分数是______．（计算结果精确到0.1%）
[交流反思]
（1）甲组的小青同学认为，要求出碳酸钠的质量，也可以使用与盐酸和石灰水所属类别不同的其他物质______（填一种具体物质的化学式）的溶液与样品反应，通过测定相关物质的质量，进行有关计算即可．
（2）乙组的小雨同学认为，所用稀盐酸的溶质质量分数也可求出：取13.5g样品放入烧杯中，每次加入20g稀盐酸（不考虑水、氯化氢逸出）后用精密仪器称量，记录实验数据如下：
| 加入盐酸的次数 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 烧杯及所称物质总质量/g | 78.9 | 97.8 | 116.7 | 135.60 | 155.05 | 175.05 | 195.05 |
| 生成气体的质量/g | 1.1 | 2.2 | a | 4.4 | 4.95 | b | -- |
