You are working as a Database Administrator. Despite having a password in the data dictionary as change_on_install， you always log on to the database MYNEWDB using operating system authentication. Your organization is planning to recruit two junior-level DBAs. You decide to enable remote authentication in your database so that the new DBAs can log on to the database from their workstations to carry out administrative tasks. To allow the new DBAs to perform the administrative tasks， you create a password file on the database server using the following command： ORAPWD file=d：/oracle/ora9i/orapwU01 password=admin entries=4 After creating the password file， you remove the operating system authentication and change the value of the REMOTE_LOGIN_PASSWORDFILE parameter to EXCLUSIVE. You also create a net service name as MYNEWDB that allows the new DBAs to connect to the database server from their workstations using this net service name. Which command must you use to connect to the database to start it？（）
第1题：
By the time you arrive, I ______ working for two hours
A. will be
B. can
C. will have been
D. have been
第2题：
A、No, I can’t.
B、It doesn’t matter.
C、Sure, why do you need it
第3题：
A、No, not at all.
B、I’m making a bookcase.
C、Yes, I really work hard.
D、Thanks.
第4题：
I am working now. I can't go with you.()
第5题：
A、actually
B、punctually
C、gradually
D、eventually
第6题：
A、taking out
B、working out
C、filling out
第7题：
—Haven’t seen you for ages!What are you busy doing now? —
A、I hate the weather here
B、My hair is getting a bit longer
C、Yeah, thanks for coming
D、I am working part time in a bookshop, you know.
第8题：
A. fond of
B.interest in
C. appear to
D. appeal to
第9题：
I' m looking forward to()together with you.
A. worked
B. work
C. working
第10题：
Could you tell the working parts of a gas welding gun?