【单选题】有一个数,除以3余数是2,除以4余数是1。问这个数除以12余数是几?( )
【单选题】关于妊娠期高血压,下列说法不正确的是
A.
妊娠期首次出现血压≥140/90mmHg,并于产后12周内恢复正常
【多选题】公路工程建筑安装工程费由______等组成。
【判断题】组织低层次管理人员主要面临的是结构化决策。
【单选题】Examine the description of the EMPLOYEES table: Which statement produces the number of different departments that have employees with last name Smith?()
A.
SELECT COUNT(*) FROM employees WHERE last_name='Smith';
B.
SELECT COUNT(dept_id) FROM employees WHERE last_name='Smith';
C.
SELECT DISTINCT(COUNT(dept_id)) FROM employees WHERE last_name='Smith';
D.
SELECT COUNT(DISTINCT dept_id) FROM employees WHERE last_name='Smith';
E.
SELECT UNIQUE(dept_id) FROM employees WHERE last_name='Smith';
【判断题】组织低层次管理人员主要面临的是结构化决策。
【单选题】EMPLOYEES表包含以下字段: FIRST-NAME VARCHAR2(25) COMMISSION NUMBER(3) 执行 SELECT FIRST-NAME, COMMISSION FROM EMPLOYEESS WHERE COMMISSION =(SELECT COMMISSION FROM EMPLOYEES WHERE UPPER(FIRST-NAME)=‘SCOTT’) 什么条...
A.
Scott has a null commission resolution
B.
Scott has a zero commission resolution
C.
There is not a employees with the first name Scott
D.
The first name values in the date base are in the lower case
【单选题】How, according to the speaker, can foreign students learn to speak English fluently?
C.
Speak English as much as possible.
D.
Attend English classes.
【简答题】由绝对值等于4的所有整数组成的集合,用列举法可以表示为()