“害人之心不可有，防人之心不可无”，具备一定的设防意识，即人的“光环心理”。（）
简述脊索动物门的基本特征及分类有哪些？
In one of your online transaction processing （OLTP） applications， users are manipulating and querying a database table simultaneously. From the Segment Advisor， you find that one of the tables is highly fragmented and you want to shrink the table immediately without affecting the currently active queries. Which option would you use with the ALTER TABLE command to achieve this objective？（） REBUILD。 CASCADE。 TRUNCATE。 ROW MOVEMENT。 SHRINK SPACE COMPACT。 SHRINK SPACE CASCADE。
永久气体公称工作压力是对于盛装永久气体的气瓶，系指在基准温度（一般为（）摄氏度）所盛装气体的限定充装压力 10。 20。 30。 25。
Given： Which two statements are true about the result if the default locale is Locale.US？（） The value of b is 2.。 The value of a is 3.14.。 The value of b is 2.00.。 The value of a is 3.141.。 The value of a is 3.1415.。 The value of a is 3.1416.。
If the user types the password aiko when prompted， what is the result？（）
