关于海鲈鱼描述正确的是（）。A、只有白鲈属于海鲈鱼 B、只有黑鲈属于海鲈鱼 C、白鲈

法洛四联症患儿急性脑缺氧发作时应采取的体位是（）

A.平卧位

B.半卧位

C.侧卧位

D.膝胸卧位

E.头低卧位

环境影响评价按( )分别划分评价等级。

A．生态要素

B．环境要素

C．当地法律法规要求

D．相关环境标准

改革开放30年的历史，就是不断解放思想、冲破束缚、改革体制、谋求发展的历史。思想解放，是改革和发展的火车头。今天，深化改革中遇到的重大理论问题和思想问题，需要勇于创新，积极应对思想理论上的挑战。胡 * * * * 在十七大报告中再次强调了解放思想的重要作用，只有继续解放思想，才能进一步改革开放，实现科学发展、社会和谐。

运用哲学知识，说明在新的历史条件下，我们应该怎样进一步解放思想。

Across a wide variety of fields, data are being collected and accumulated at a dramatic pace. There is an urgent need for a new generation of computational theories and tools to assist humans in (96) useful information (knowledge) from the rapidly growing (97) of digital data. These theories and tools are the subject of the emerging field of knowledge discovery in database (KDD). At an abstract level, the KDD field is concerned with the development of methods and techniques for making (98) of data. The basic problem addressed by the KDD process is one of mapping low-level data(which are typically too voluminous to understand and digest easily) into other forms that might be more (99) (for example, a short report), more (100) (for example, a descriptive approximation or model of the process that generated the data), or more useful (for example, a predictive model for estimating the value of future cases). At the core of the process is the application of specific data-mining methods for pattern discovery and extraction.

（99）是（）

A.dense

B.compact

C.extensile

D.short

汽轮机的保护系统由哪些部分组成？