皮皮学，免费搜题
登录
搜题
【单选题】
函数 在 处可导是其在该点可微的( )条件A.
必要
B.
充分
C.
充要
D.
既不充分也不必要
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】—The clothes are one hundred yuan. —One hundred yuan! _______ you _______? [ ]
A.
Do; kidding
B.
Do; kid
C.
Is; kidding
D.
Are; kidding
【单选题】Five mil lion, five hundred and fifteen thousand, one hundred and fifty-one is __________. [ ]
A.
5,515,151
B.
5,151,151
C.
5,151,515
D.
5,551,155
【简答题】二2 ( )是一个由人、计算机等组成的能进行物流信息的收集、传递、储存、加工、维护和使用的系统。
【简答题】将Student表中的Sno属性定义为码 CREATE TABLE Student (Sno CHAR (9) _______________, Sname CHAR (20) NOT NULL, S CHAR (2), Sage SMALLINT, Sdept CHAR (2) );
【简答题】创业创新执行力课程告诉大学生在大学前几年我们要做的是()。
【单选题】You need to design a student registration database that contains several tables storing academic information. The STUDENTS table stores information about a student. The STUDENT_GRADES table stores inf...
A.
CREATE TABLE student_grades (student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), CONSTRAINT student_id_fk REFERENCES (student_id) FOREIGN KEY student (student_id));
B.
CREATE TABLE student_grades(student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), student_id_fk FOREIGN KEY (student_id) REFERENCES students (student_id));
C.
CREATE TABLE student_grades(student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), CONSTRAINT FOREIGN KEY (student_id) REFERENCES student (student_id));
D.
CREATE TABLE student_grades(student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), CONSTRAINT student_id_fk FOREIGN KEY (student_id) REFERENCES students (student_id));
【单选题】We read 10 ,206 like this________.
A.
one thousand, two hundred and six
B.
one thousands, two hundred and six
C.
ten thousand, two hundred and six
D.
ten thousand, two hundred six
相关题目：