SG1025／18.3—M316型锅炉汽包和水冷壁水容器为（）m3，汽包中心标高为（

某实验小组的同学用碳酸钠粉末、颗粒状大理石、稀盐酸、浓盐酸、稀硫酸这几种药品，探究实验室制取CO₂的反应原理．请你参与下列探究并回答问题．

[提出问题]上述几种酸和碳酸盐的反应是否适合在实验室制取CO₂？

[问题说明]（1）浓盐酸是否适合用于实验室制取CO₂？请说明理由．

[方案设计]现有如下三个实验进行对比分析：

（2）请你完成实验报告中的有关内容的填写．

实验	实验现象	得出的结论
A	剧烈反应，迅速放出大量气泡	反应速率过快，气体不便收集，不宜于实验室制取CO2
B	产生气泡，速率迅速减慢，反应几乎停止	无法持续产生CO2，不能用于实验室制取CO2
C	______	______

（3）根据探究结论，实验室制取二氧化碳的反应原理为______．

[拓展与迁移]

（4）由上述探究可知，在确定实验室制取气体的反应原理时，应该考虑哪些因素？（写出两点即可）

关于TIPSS，下列正确的是（）。

A.是经颈动脉肝内门体静脉支架分流术

B.可有效降低肝静脉压力

C.是治疗胃食管静脉曲张出血的唯一有效方法

D.可增加肝性脑病的发病率

E.通过分流治疗难治性腹水

依靠检验人员的感觉器官进行产品质量评价或判断的检查属于( )。

A．动物毒性试验

B．感官检验

C．微生物检验

D．微生物试验

Why is ______ fun. What delights may its practitioner expect as his reward. First is the sheer joy of making things. As the child delights in his mud pie, so the adult enjoys building things, especially things of his own design. Second is the pleasure of making things that are useful to other people. Third is the fascination of fashioning complex puzzle-like objects of interlocking moving parts and watching them work in subtle cycles, playing out the consequences of principles built in from the beginning. Fourth is the joy of always learning, which springs from the ______ nature of the task. In one way or another the problem is ever new, and its solver learns something: sometimes ______, sometimes theoretical, and sometimes both. Finally, there is the delight of working in such attractable medium. The ______, like the poet, works only slightly removed from pure thought-stuff. Few media of creation are so flexible, so easy to polish and rework, so readily capable of realizing grand conceptual structures.
Yet the program ______, unlike the poet’s words, is real in the sense that it moves and works, producing visible outputs separate from the construct itself．It prints results, draws pictures, produces sounds, moves arms．Programming then is fun because it gratifies creative longings built deep within us and delights sensibilities we have in common with all men．

A．semantic
B．practical
C．lexical
D．syntactical

秦霸西戎