以下哪些途径能有效促进教师教育能力的发展？（） ["观摩与分析","微型教学","教学决策训练","教学反思"]
You issued the following command to drop the PRODUCTS table: SQL> DROP TABLE products; What is the implication of this command?（） ["All data along with the table structure is deleted ","The pending transaction in the session is committed ","All indexes on the table will remain but they are invalidated ","All views and synonyms will remain but they are invalidated ","All data in the table are deleted but the table structure will remai"]
设计单位不应当根据勘察成果文件进行建设工程设计。
民事法律行为
A customer is considering replacement of twenty older 4U and 6U rack-based servers with one IBM x366 Server running VMWare ESX attached to one DS4300. Which of the following represents a reduction in Total Cost of Ownership （TCO） for the customer？（） ["Reduction in operating system software licensing and application costs","Reduction in floor space and hardware cost saving","VMWare is licensed per system so no extra charge for SMP support","No single point of failure， reducing downtime"]
β-R阻断药、扩血管药，转化酶抑制药在治疗充血性心力衰竭的地位和作用。
