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."]
轴的结构及尺寸初步确定之后，还须校核轴的强度。
实体性贬值
Examine the description of the MARKS table: SUBJ1 and SUBJ2 indicate the marks obtained by a student in two subjects. Examine this SELECT statement based on the MARKS table: What is the result of the SELECT statement?（） [" The statement executes successfully and returns the student ID and sum of all marks for each student who obtained more than the average mark in each subject."," The statement returns an error at the SELECT clause."," The statement returns an error at the WHERE clause."," The statement returns an error at the ORDER BY clause."]
群植（树群）
