Student A. Good morning. Would-you please do me a favor?

Student B: Certainly. ______?

[单选题]存在关系Student：Student(学号，姓名，年龄，所在学院，学院地点，学院电话)且有：(学号)→(姓名，年龄，所在学院，学院地点，学院电话)(所在学院)→(学院地点，学院电话)关系Student最高达到哪级范式?A．) 不满足B．) 1NFC．) 2NFD．) 3NFA．B．C．D．

[单选题]在关系SC(student_id，student_name，course_id, grade)中，有student_id，course_id→ gradesmdent_id→student_name关系SC最高达到( )范式。A．不满足B．1NFC．2NFD．3NF

[单选题]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．1NFC．2NFD．3NF

[单选题]_______________is a good way for students to stop fights.A． Doing less homeworkB． Learning how to make friendsC． Playing computer games

It is difficult to conclude what a(n)___student does in his spare time because e

[单选题]Student A: The Spring Festival is coming finally! What about going for a picnic tomorrow?Student B: Great!______. What time and where?

[单选题]If a student has a problem with classroom work，he or she should______.A． make an appointment with the professor a week beforeB． approach a professor after classC． seek the professor's help in his officeD． go to the professor's apartment

[单选题]What is considered to be a good student? He is the one who______.A． aims at getting good scoresB． is planning to get a degreeC． is capable of memorizing knowledgeD． has the motivation to learn

[单选题]Today a student knows that__________A．his knowledge is often incorrectB．he cannot learn more than the students in the 19th century didC．those who come after him will have greater difficulties in learningD．his knowledge is very limited compared with t

[单选题]以下3题基于student表和class表,student表的主键是学号,class的主键是课程号。下列描述的操作中,哪一个操作不正确?A．从表student中删除行(′010′,′王宏大′,′01′,′02′)B．在student中插入行(′102′,′赵民′,′03′,′03′)C．将student中学号=′010′的课程号改为′02′D．将stuedent中雇员号=′101′的课程号改为′05′