大接法钢丝绳编接处接头较为平滑，多用于大型卷扬机钢丝绳的连接。
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造成老年人自卑心理主要原因有（）。
A. 社会交往的增多
B. 知识老化及经济收入的相对减少
C. 感觉能力下降
D. 生理功能逐渐增强
我国是国际海事组织（IMO）的（）类理事国。
A类
B类
C. Ⅰ类
D. Ⅱ类
Which three statements are true about Automatic Workload Repository (AWR)?（）
All AWR tables belong to the SYSTEM schema.
B. The AWR data is stored in memory and in the database.
C. The snapshots collected by AWR are used by the self-tuning components in the database
D. AWR computes time model statistics based on time usage for activities, which are displayed in the v$SYS time model and V$SESS_TIME_MODEL views.
E. AWR contains system wide tracing and logging information.
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