心底部第二心音逆分裂的听诊特点是()。 A.深吸气后增强 B.运动后不明显 C.深吸

题型:单项选择题 B型题

问题:

心底部第二心音逆分裂的听诊特点是()。

A.深吸气后增强

B.运动后不明显

C.深吸气后不明显

D.仰卧位增强

E.左侧卧位时明显

考点:卫生资格考试(中初级)消化科基础知识消化内科主治医师基础知识模拟试题四
题型:单项选择题 B型题

某小型企业不能正确核算收入总额,2009年发生成本费用180万元;税务机关核定的应税所得率为10%。2009年该企业应缴纳企业所得税( )万元。

A.3.6

B.4.5

C.4.0

D.5.0

题型:单项选择题 B型题

不属于风险估计与评价常用的方法是( )。

A.调查和专家打分法

B.解析方法

C.概率估算法

D.蒙特卡洛模拟法

题型:单项选择题 B型题

止回阀应装设在开式加热水箱的( )上。

A.给水管

B.给水供水管

C.连通管

D.回水管

题型:单项选择题 B型题

高压开关柜内手车开关拉出后,隔离带电部位的挡板封闭后禁止开启,并设置“禁止合闸,有人工作!”的标示牌。

题型:单项选择题 B型题


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.

Which of the following does the author view as the key points of Paragraph 6 Ⅰ. Imperfect as it is, technology has not failed us.Ⅱ. The wasteful use of technology in transport is an example to change climate.Ⅲ. Problems created by technology can only be solved by technology itself.

A.Ⅰ and Ⅱ

B.Ⅱ and Ⅲ

C.Ⅰ and Ⅲ

D.Ⅰ, Ⅱ and Ⅲ

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