（）是党的生命，是党内政治生活积极健康的重要基础。 ["党内监督","党内民主"]
符号L125×80×10表示（） ["不等边角钢","等边角钢","槽钢","钢板"]
创业要素的核心是（）。 ["机会","资源","创业者","创新意识"]
党内选举必须体现（）意志，规范和完善选举制度规则。 ["普通党员","选举人"]
In the communications industry, what are the features and benefits of using the layered OSI model?（） [" It encourages industry standardization by defining what functions occur at each layer of the model."," It necessitates changes in functionality in one layer to other layers."," It enables equipment efficiency from different vendors to use the same electronic components."," It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting."," It supports the evolution of multiple competing standards, and thus enhances business equipment manufacturing opportunities."]
简述我国实行部门预算的必要性。
