【简答题】把相应的问句与答句搭配起来。 ( )1. Do you like hot dog? ( )2. Would you like some tea? ( )3. What would you like? ( )4. How much for one donut? ( )5. How many bottles of pop? ( )6. Are you t...
【单选题】查询scott用户的emp表中的总记录数,可以使用下列( )语句。
A.
SELECT MAX(empno) FROM scott.emp;
B.
SELECT COUNT(empno) FROM scott.emp;
C.
SELECT COUNT(comm) FROM scott.emp;
D.
SELECT COUNT(*) FROM scott.emp;
【单选题】以下关于编译程序的说法正确的是( )
B.
编译程序完成高级语言程序到低级语言程序的等价翻译
【单选题】( )Do you like snakes?
【单选题】— Do you like the film? — Yes, I do. In fact, I've never seen a _____ one. [ ]
【单选题】--- Do you like the theatre? --- ______________________.
【简答题】查询scott用户的emp表中的总记录数,可以使用下列哪个语句?A. SELECT MAX(empno) FROM scott.emp; B. SELECT COUNT(empno) FROM scott.emp; C. SELECT COUNT(comm) FROM scott.emp; D. SELECT COUNT(*) FROM scott.emp;
【单选题】为避免在麻醉过程中出现血肿,其防治原则中不包括以下哪项