If the receiver is Mr. John E. Smith, his surname is _____.
A、John
B、E.
C、Smith
D、John E.
第1题:
A.mkgroup -A=john,mary delivery
B.groupadd -A=john,mary delivery
C.mkgroup adms=john,mary delivery
D.groupadd adms=john,mary delivery
第2题:
第3题:
8、快速切换到用户john的主目录下的命令是()
A.cd @john
B.cd #john
C.cd &john
D.cd ~john
第4题:
下列值不为true的表达式有( )。
A、"john"=="john"
B、"john".equals("john")
C、"john"="john"
D、"john".equals(newString("john"))
第5题:
通过 SQL,从 “actor” 表中选取 "FirstName" 列的值等于"John" 的所有记录的表述正确的是()。
A.SELECT * FROM Actor WHERE FirstName='John'
B.SELECT [all] FROM Actor WHERE FirstName LIKE 'John'
C.SELECT * FROM Actor WHERE FirstName LIKE 'John'
D.SELECT [all] FROM Actor WHERE FirstName='John'