全家4口人,母亲比父亲小2岁,哥哥比妹妹大3岁。三年前他们全家的年龄和为57岁,而现在是67岁。问:现在爸爸的年龄是多少?()
A.32
B.30
C.28
D.26
A.32
B.30
C.28
D.26
第1题
A.Define a UNIQUE constraint on the columns NEXT_STEPNO and STEPNO.
B.Define a CHECK constraint on the NEXT_STEPNO column (NEXT_STEPNO = STEPNO).
C.Define column STEPNO as the primary key of TABLEX and column NEXT_STEPNO as a foreign key referencing column STEPNO of the same table.
D.Define column NEXT_STEPNO as the primary key of TABLEX and column STEPNO as a foreign key referencing column NEXT_STEPNO in the same table.
第2题
A.TS3310
B.TS3500
C.TS3400
D.TS3200
第3题
A.GRAPHIC
B.BINARY
C.IMAGE
D.BLOB
第4题
A.theminimumis1andthemaximumis8
B.theminimumis2andthemaximumis8
C.theminimumis2andthemaximumis16
D.theminimumis1andthemaximumis64
第6题
A.CREATE TABLE emp ( empno SMALLINT NEXTVAL GENERATED ALWAYS AS IDENTITY, firstname VARCHAR(30) NOT NULL, lastname VARCHAR(30) NOT NULL, workdept CHAR(3) NOT NULL, edlevel CHAR(1), PRIMARY KEY emp_pk (empno), FOREIGN KEY emp_workdept_fk ON (workdept) REFERENCES department (deptno), CHECK edlevel_ck VALUES (edlevel IN (‘C‘,‘H‘,‘N‘)), );
B.CREATE TABLE emp ( empno SMALLINT NOT NULL GENERATED BY DEFAULT AS IDENTITY, firstname VARCHAR(30) NOT NULL, lastname VARCHAR(30) NOT NULL, workdept CHAR(3), edlevel CHAR(1), CONSTRAINT emp_pk PRIMARY KEY (empno), CONSTRAINT emp_workdept_fk FOREIGN KEY (workdept) REFERENCES department (deptno), CONSTRAINT edlevel_ck CHECK edlevel VALUES (‘C‘,‘H‘,‘N‘) );
C.CREATE TABLE emp ( empno SMALLINT NEXTVAL GENERATED BY DEFAULT AS IDENTITY, firstname VARCHAR(30) NOT NULL, lastname VARCHAR(30) NOT NULL, workdept CHAR(3) NOT NULL, edlevel CHAR(1) CHECK IN (‘C‘,‘H‘,‘N‘)), CONSTRAINT emp_pk PRIMARY KEY (empno), CONSTRAINT emp_workdept_fk FOREIGN KEY department (deptno) REFERENCES (workdept) );
D.CREATE TABLE emp ( empno SMALLINT NOT NULL GENERATED BY DEFAULT AS IDENTITY, firstname VARCHAR(30) NOT NULL, lastname VARCHAR(30) NOT NULL, workdept CHAR(3), edlevel CHAR(1), CONSTRAINT emp_pk PRIMARY KEY (empno), CONSTRAINT emp_workdept_fk FOREIGN KEY (workdept) REFERENCES department (deptno), CONSTRAINT edlevel_ck CHECK (edlevel IN (‘C‘,‘H‘,‘N‘)) );
第7题
A.init 0
B.telinit m
C.shutdown -FM
D.sh /etc/rc.maint
第8题
A.2001
B.2B00
C.3A01
D.5E00
第9题
A.view
B.strings
C./usr/sbin/viwtmp
D./usr/sbin/acct/fwtmp
第10题
A.Add the fibre channel card as hared?Add the fibre channel card as ?hared?
B.Add the fibre channel card as irtual?Add the fibre channel card as ?irtual?
C.Add the fibre channel card as esired?Add the fibre channel card as ?esired?
D.Add the fibre channel card as equired?Add the fibre channel card as ?equired?
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