‍动脉粥样硬化是冠心病的发病基础。‎

单项选择题全天星空按照北半球春分、夏至、秋分以及冬至太阳在天球上的投影位置可依次划分为（ ）A. 御夫星区、仙后星区、大熊星区和天琴星区B. 仙后星区、御夫星区、大熊星区和天琴星区C. 大熊星区、仙后星区、御夫星区和天琴星区D. 大熊星区、天琴星区、仙后星区和御夫星区

单项选择题HANA improved the data analysis performance in data warehouse, Not because ( ) A、It eliminates unnecessary complexity and latency B、Accelerate through simplification C、Leveraging the power of in-memory computing allows HANA to bring OLTP, transaction processing, and OLAP, data analytics, back together in one database. D、Specialized data warehouses for reporting and analytics required the moving, transformation and pre-processing of transactional data, which introduces a huge complexity: sometimes an enterprise may hold three different copies of the same data