Susan is a good student.()she gets good grades in school.
A、That is
B、So that is
C、It is
D、So it is
A、That is
B、So that is
C、It is
D、So it is
The main reason we tend to focus on the (72) rather than the human side of the work is not because it’s more (73),but because it’s easier to do.Getting the new disk drive installed is positively trivial compared to figuring out why Horace is in a blue funk(恐惧)or why Susan is dissatisfied with the company after only a few months.Human interactions are complicated and never very crisp(干脆的,干净利落的)and clean in their effects,but they matter more than any other aspect of the work.
If you find yourself concentrating on the (74) rather than the (75) .you’re like the vaudeville character(杂耍人物)who loses his keys on a dark street and looks for them on the adjacent street because,as he explains,“The light is better there!”
(71)
A.creators
B.innovators
C.appliers
D.inventors
在学生表STUD中,查询年龄在20至23岁之间的学生的姓名(XM)、年龄(SA) 和所在系(SD) ,实现该功能的正确SQL语句是()。
A.SELECT XM,SA,SD FROM STUD WHERE BETWEEN 20<SA<23;
B.SELECTXM,SA,SD FROM STUD WHERE SA:BETWEEN 23 AND 20;
C.SELECTXM,SA,SD FROM STUD WHERE SA NOTBETWEEN20 AND 23;
D.SELECTXM,SA,SD FROM STUD WHERE SA BETWEEN 20 AND 23;
在学生表STUD中查询所有姓张的学生的信息,使用的SQL语句是______。
A.SELECT*FROM STUD WHERE 姓名 LIKE"张%”
B.SELECT*FROM STUD WHERE 姓名 IN("张%")
C.SELECT*FROM STUD WHERE 姓名 LIKE"张$"
D.SELECT*FROM STUD WHERE 姓名 IN"张$)"
A.SHOW TABLE CREATE stud
B.DISPLAY CREATE TABLE stud
C.SHOW CREATE TABLE stud
D.DESCRIBE stud
删除学生表STUD中关于学号XH必须取唯一值的约束。实现该功能的正确SQL语句是______。
A.ALTER TABLE STUD ADD XH UNIQUE
B.ALTER TABLE STUD MODIFY XH UNIQUE
C.ALTER TABLE STUD DROP UNIQUE(XH)
D.ALTER TABLE STUD MODIFY UNIQUE(XH)
将表STUD中性别为“男”的学生的“年龄”加2,能实现此功能的语句是______。
A.SELECT年龄+1 FROM STUD WHERE性别="男"
B.ALTER STUD年龄WITH年龄+1 WHERE性别="男"
C.UPDATE STUD SET年龄=年龄+1 WHERE 性别="男"
D.UPDATE STUD年龄WITH年龄+1 WHERE性别="男"
实现“取消用户USER4对学生表STUD中学号(XH)的修改权限”这一功能的SQL语句是()。
A.REVOKE UPDATE (XH) ON TABLE FROM USER4;
B.REVOKE UPDATE (XH) ON TABLE STUD FROM PUBLIC ;
C.REVOKE UPDATE (XH) ON TABLE STUD FROM USER4;
D.REVOKE ALL PRIVILEGES ON TABLE STUD FROM USER4;
在学生表STUD中,查询年龄在20-至23岁之间的学生的姓名(XM)、年龄(SA)和所在系(SD),实现该功能的正确SQL语句是______。
A.SELECTXM,SA,SD FROM STUD WHERE BETWEEN 20
B.SELECTXM,SA,SD FROM STUD WHERE SA BETWEEN23AND20;
C.SELECTXM,SA,SD FROM STUD WHERE SA NOTBETWEEN20 AND 23;
D.SELECTXM,SA,SD FROM STUD WHERE SA BETWEEN 20 AND 23;
在学生表STUD中查询所有小于20岁的学生的姓名(XM)及其年龄(SA) 。实现该功能的正确SQL语句是______。
A.SELECT XM,SA FROM STUD FOR SA<20
B.SELECT XM,SA FROM STUD WHERE NOT SA>=20
C.SELECT XM,SA ON STUD FOR SA<20
D.SELECT XM,SA ON STUD WHERE SA<20
A.stud[1].num
B.struct.stu
C.num
D.student.stu
E.num
F.F.struct student.num