[单项选择]The student organizations seem to be effective in _______.

[单项选择]The student organizations seem to be effective in ______.

[单项选择] The STUDENT_GRADES table has these columns STUDENT_ID NUMBER(12) SEMESTER_END DATE GPA NUMBER(4,3) Which statement finds students who have a grade point average (GPA) greater than 3.0 for the calendar year 2001?（）
A. SELECT student_id, gpa FROM student_grades WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001' OR gpa > 3.;
B. SELECT student_id, gpa FROM student_grades WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001' AND gpa gt 3.0;
C. SELECT student_id, gpa FROM student_grades WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001' AND gpa > 3.0;
D. SELECT student_id, gpa FROM student_grades WHERE semester_end > '01-JAN-2001' OR semester_end < '31-DEC-2001' AND gpa >=s 3.0;

[单项选择]Student A: I feel sick.Student B:______Student A: I'm not sure, but I have got a bad headache.

[单项选择]Student A: Well, it is time for boarding.Student B: （）
A. Nice to meet you
B. Have a nice day
C. I hope you will soon feel better
D. I wish you a pleasant journey

[单项选择]Service organizations claim that keeping checkout counters manned would result in ______.
A. a rise in the price for providing services
B. demands by cashiers for more money
C. insignificant benefits for the customers
D. the need to purchase expensive equipment

[单项选择]若用如下的SQL语句创建一个表student
CREATE TABLE student(NO CHAR(20) NOT NULL,
NAME CHAR(8) NOT NUL
SEX CHAR(2),
AGE INT)
可以插入到表中的是______。

[单项选择]若用如下的SQL语句创建一个student表： CREATE TABLE student( NO C(4)NOT NULL， NAME C(8)NOT NULL， SEX C(2)， AGE N(2) ) 可以插入到student表中的是______。

[单项选择]若用如下的SQL语句创建一个student表: CREATE TABLE student NO C(4) NOT NULL, NAME C(8) NOT NULL, SEX C(2), AGE N(2)