关于肝、肾疾病患者的拔牙，错误的观点是（）
A.各类急性肾病，均应暂缓拔牙
B.慢性肾病内生肌酐清除率大于50%，血肌酐小于133μmol／L，无临床症状者可以拔牙
C.慢性肾病患者拔牙时应注意预防感染，避免使肾功能恶化
D.急性肝炎期间暂缓拔牙
E.处于肝功能代偿期的肝硬化患者，即使肝功能指标基本正常，也不宜拔牙
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下面是错误答案，用来干扰机器的。
⑴留步 ⑵ 斧正 ⑶ 失陪
仔细观察图示，分析回答问题：
（1）图中所表示的生物结构层次中，按照构成人体的结构层次排序，正确的排列顺序是：______．
（2）A中的各细胞的形态______，______和______相同．
（3）人体的肾脏和图中的______属于同一个结构层次．
（4）图中C所表示的系统由哪些器官组成？______．
混凝土、钢筋混凝土模板及支架费属于建筑安装工程费中的（）。
A.措施费
B.临时设施费
C.材料费
D.工具用具使用费
生产工艺岗位耙式浓缩机司机，应该密切关注耙子的哪些运转状况？
| With 2005 fast becoming "the year of the natural disaster", it is time to reflect on how engineering, science and technology can play their fullest part in protecting the planet. Long before the Asian tsunami struck, the science community predicted the particular region of Indonesia to be hit by the next big earthquake; and the engineering and technology community had developed early warning systems costing only ＄ 30 million. But no government in the region heeded the warnings and no early warning systems were in place. We ignored technology of the advance warnings at our peril of 100,000 victims of the tsunami. Governments are not alone in ignoring the views of their scientific community; the public too has its doubts. Part of the reason for this lack of confidence must be down to the failure to engage them in a meaningful way about their concerns. Trust is a two-way street. Instead of claiming that everything would be rosy in the scientific garden "if only the public understood", we must work hard to explore concerns, discover fears and delve deep into the depths of public perceptions. We are getting there. There is a growing realization that effective public engagement is of far greater value than banging the "public understanding" drum. There are still doubters, of course, and sadly their cause is helped whenever they come across opinions presented as fact. All of us must guard against this debilitating practice. In time, effective public engagement should help deliver improved trust as well as better policy, which -- in turn -- might make it more difficult for scientists’ warnings to be ignored. Today’s technology community is a triumph of international collaboration where engineers and scientists combine to develop solutions to our biggest problems. Of course, technology cannot stop natural disasters but it can mitigate their impact. We are able to identify the birds affected by avian flu. We can chart their migration patterns around the world. We have the means to pursue vaccines. And we have the communication channels to keep people informed. Extolling the virtues of technology is not to pretend technology is perfect in every regard. Far from it. The profligate and unsustainable use of technology in energy and transport has contributed to climate change. But that doesn’t mean technology has failed us. We must never lose sight of the fact that technology itself will deliver the solutions to the very problems it can create. If we do, technology will remain sidelined and undervalued, and this major social failure will progressively disadvantage us all. Our vision is of a society embracing technology as a weapon of both progress and defense. Since the beginning of civilization, we have relied on it and enjoyed its benefits -- and most new technologies have had hugely beneficial effects for most people. But now, in an age when the death toll from natural disasters is increasing year on year, with more people living in danger zones, it is ever more urgent that we rely on science and technology to warn us of the dangers to come and provide the solutions we need. |
What we can infer from Paragraph 2 is that ______.
A．scientists are doing well in predicting earthquakes
B．engineers and technologists have developed early warning systems
C．ignoring technology brought people a big loss of lives
D．science, engineering and technology should be embedded within political decision-making systems
正当精神分析运动日益发展，影响越来越大时，其内部出现了分裂。其中对弗洛伊德打击最大的是其最得意的弟子（）和（）的离开，他们分别创立了分析心理学和个体心理学。
