【单选题】The rise of 'temp' work has further magnified the decreasing fights and alienation of the worker. It is common corporate practice to phase out full-time employees and hire temporary workers to take on...
A.
Corporations intend to leave more workload to temporary workers.
B.
Temp workers are generally well-trained and can achieve high efficiency.
C.
Corporations can reduce their production cost by employing temp workers.
D.
Corporations can benefit a great deal from keeping a small full-time work force.
【单选题】A user executes a query on the EMP table, which contains thousands of rows, to get details about employees in one of the departments. The user receives the following error: SQL> SELECT ename FROM emp ...
A.
The tempfile belonging to the default temporary tablespace is missing.
B.
The database is opened in restricted mode, so queries are not allowed.
C.
The default temporary tablespace required to execute the query is offline.
D.
The default temporary tablespace required to execute the query is dropped.
E.
The default temporary tablespace required to execute the query is readonly.
【简答题】以下程序的功能是 输入的百分制成绩( score ),要求输出成绩等级( grade ) A 、 B 、 C 、 D 、 E 。 90 分以上为 A , 80~89 分为 B , 70~79 分为 C , 60~69 分为 D , 60 分以下为 E 。请填空。 main () { int score ,temp; char grade ; printf ( “ \ n Please input...