在关系SC(student_id, student_name, course_id, grade)中，有 student_id, course_id →grade student_id →student_name 关系SC最高达到 A: 不满足 B: 1NF C: 2NF D: 3NF

在关系SC(student_id,student_name,course_id,grade)中，有 student_id,course_id→grade student_id→student_name 关系SC最高达到______范式。 A: 不满足 B: 1NF C: 2NF D: 3NF

创建名为course的数据库的命令是（ ）。 A: creat database course; B: creat course; C: create database course; D: create course;

Which course is not recommended by the professor to you in your first semester?? A writing course|A foundational course to your major|A challenging course leading you to a specialty|A physical education course

【多选题】Course summary design is one of the most important parts for creating a course, which required top design for the whole course including course background, course objectives, design principles, l

删除表course的记录。其SQL语句为（ ）。 A: DELETE from course where * B: DELETE * from course C: DELETE course D: DELETE FROM course

创建一个名称为course的数据库,通常使用下列( )的语句。 A: CREATE DATABASE course; B: CREATE course; C: CREATE TABLE course; D: SHOW DATABASE course;

​A _________ is an online course aimed at unlimited participation and open access via the web.‎ A: Magnificent Open Online Course B: Magnificent Online Open Course C: Massive Open Online Course D: Massive Online Open Course

He's seen many changes ____ his long life. A: during the course of B: in course of C: in the course of

The first course in a meal is called the main course, mains or entree. （ ）