若有以下定义，则对变量student1中“生日”的正确赋值方式是（ ）。struct student{ int num; char name[20], sex; struct { int year, month, day; } birthday;} ; struct student student1; A: student1.birthday.year = 2003;student1.birthday.month = 5;student1.birthday.day = 1; B: year = 2003;month = 5;day = 1; C: birthday.year = 2003;birthday.month = 5;birthday.day = 1; D: student1.year = 2003;student1.month = 5;student1.day = 1;

The first day at college is usually exciting, refreshing, and , ______ , a day to remember. A: in the words of many students’ B: in many students' words C: in the words of many student’s D: in many student's words

删除student表中id为1的记录（） A: TRUNCATE FROM student where id=1; B: DELETE student where id=1; C: DELETE FROM student where id=1; D: DELETE INTO student where id=1;

删除student表中id为1的记录，下列语句正确的是 A: DELETE student WHERE id=1; B: DELETE FROM student WHERE id=1; C: DELETE FROM student WHERE id:=1; D: DELETE student WHERE id:=1;

用SQL语句将STUDENT表中字段“年龄”的值加1，可以使用的命令是（ ）。 A: REPLACE STUDENT 年龄 WITH 年龄 + 1 B: UPDATE STUDENT SET 年龄 = 年龄 + 1 C: REPLACE STUDENT 年龄 = 年龄 + 1 D: UPDATE STUDENT 年龄 WITH 年龄 + 1

用SQL语句将STUDENT表中字段“年龄”的值加1，可以使用的命令是（ ）。 A: REPLACE STUDENT 年龄 = 年龄 +1 B: REPLACE STUDENT 年龄 WITH 年龄 +1 C: UPDATE STUDENT SET 年龄 = 年龄+1 D: UPDATE STUDENT SET 年龄 WITH 年龄+1

用SQL语句将STUDENT表中字段“年龄”的值加1，可以使用的命令是（ ）。 A: REPLACE STUDENT 年龄 WITH 年龄 + 1 B: UPDATE STUDENT SET 年龄 = 年龄 + 1 C: REPLACE STUDENT 年龄 = 年龄 + 1 D: UPDATE STUDENT 年龄 WITH 年龄 + 1

Joe is a day student, but I am a _ student. A: A.night B: B. border C: C. boring D: D. boarding

October 1 is _________. A: May Day B: Children’s Day C: National Day D: New Year’s Day

______is the Canada Day, the National Day of Canada. A: May 1 B: July 4 C: October 1 D: July 1