$str = "My name is Jack, and what is your name?";echo substr_count ($str,“name”);程序的输出结果为()。
A、1
B、2
C、3
D、4
A、1
B、2
C、3
D、4
A、 NULL B、 Compilation fails. C、 The code runs with no output. D、 An exception is thrown at runtime.
A、A.Competeline B、B.Executive Briefing Center C、C.Competitive Benchmark Center D、D.Field Technical Support Specialist (FTSS)
A、SYSDBA B、SYSOPER C、No system privileges are required for the RMAN user. D、Only SYS user can connect and execute RMAN commands on a target database.
A、One Active Directory forest with one domain. B、One Active Directory forest with three domains. C、One Active Directory forest with four domains. D、Two Active Directory forests with one domain in each forest. E、Three Active Directory forests with one domain in each forest.