下塞柄时，开孔机离合器应（） 啮合。 脱离。 连接。 分离。
Which two statements are true regarding working with dates?（） The default internal storage of dates is in the numeric format 。 The default internal storage of dates is in the character format 。 The RR date format automatically calculates the century from the SYSDATE function and does not allow the user to enter the century 。 The RR date format automatically calculates the century from the SYSDATE function but allows the user to enter the century if required。
在流动资产评估中，对（）的评估实际上就是清查和确认其实有数额。 库存现金。 银行存款。 应收账款。 库存商品。
杠杆式百分表测量时，触头与工件表面接触压入量0.1-（）mm为宜。 0.2。 0.3。 0.4。 0.5。
Examine the structure of the EMPLOYEES and NEW_EMPLOYEES tables: EMPLOYEES EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2(25) LAST_NAME VARCHAR2(25) HIRE_DATE DATE NEW_EMPLOYEES EMPLOYEE_ID NUMBER Primary Key NAME VARCHAR2 (60) Which DELETE statement is valid?（） DELETE FROM employees WHERE employee_id = (SELECT employee_id FROM employees);。 DELETE * FROM employees WHERE employee_id = (SELECT employee_id FROM new_ employees);。 DELETE FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE name = 'carrey');。 DELETE * FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE name = 'carrey')。
以下哪项不属于信用信息查询内容中的提示信息内容？（）
