搜题请搜索小程序“爱下问搜题”
问题 单项选择题

企业事业单位和其他生产经营者，在（）的基础上，进一步减少污染物排放的，人民政府应当依法采取财政、税收、价格、政府采购等方面的政策和措施予以鼓励和支持。

A.排放污染物达到标准

B.污染物排放符合法定要求

C.排放的污染物达到要求

D.污染物排放符合要求

答案

参考答案：B

单项选择题

The purpose of the requirements definition phase is to produce a clear, complete,consistent, and testable （71） of the technical requirements for the software product.During the requirements definition phase, the requirements definition team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specification of each function that the software must perform and each （72） that it must meet. The starting point is usually a set of high-level requirements from the （73） that describe the project or problem.In either case, the requirements definition team formulates an overall concept for the system and then defines （74） showing how the system will be operated, publishes the system and operations concept document, and conducts a system concept review(SCR). Following the SCR, the team derives （75） requirements for the system from the high level requirements and the system and operations concept. Using structured or object-oriented analysis, the team specifies the software functions and algorithms needed to satisfy each detailed requirement.

A．criterion

B．standard

C．model

D．system
查看答案
选择题

关于下列图示的说法中，正确的是

[ ]

A．图①所示实验可比较硫、碳、硅三种元素的非金属性强弱

B．可用图②所示实验装置收集CO2气体（排空气法）

C．图③表示可逆反应CO(g)+H2O(g)CO2(g)+H2(g)的△H大于0

D．图④装置可以用来除去SO2中的HCl

查看答案