阅读下面这篇短文，短文后有2项测试任务：(1)第23～26题要求从所给的6个选项中为规定段每段选择1个正确的小标题；(2)第27～30题要求从所给的6个选项中选择4个正确选项，分别完成每个句子。
Before you can use a fax modem, you must specify it as
active. Also, only one fax modem can be used at a time. If you have more than
one available, you need to specify which one you want to be active. Make sure
that Mail is closed and the Outbox is empty before you specify the active
modem. 2. If you plan to use a fax modem located on another
computer on your network, you need to specify the name of the computer and the
name of the shared directory. You may also need to supply a password for the
shared directory. Your workgroup administrator or the person whose fax .modem it
is can give you this information. 3. When you share a fax
modem, anyone using the network can connect to it to send faxes. Because
of this, you might receive faxes for Other people in addition to faxes intended
for you. You need to forward faxes intended for others. 4. You
can send a fax from Mail or from an application. When you send a fax from Mail,
your fax can include other documents that you attach. When you send a fax from
an application, the current document becomes the fax message. You can send the
same message to both’ Mail and PC Fax recipients at the same time by using a
combination of mail and fax addresses. If you send many faxes to the same
recipients, you can avoid having to type the fax number each time by adding fax
numbers to your Personal Address Book in Mail. 5. You can use
the Personal Address Book in Mail to store commonly used fax numbers in addition
to commonly used mail addresses. You do not need to include the recipient’s name
when you type a fax address. However, if you have selected the option in Mail to
add recipients automatically to the Personal Address Book, and you use a name in
the fax address, the address is added by name rather than by fax number. 6.
You can receive a fax directly via a fax modem on your computer,
or another person who has a fax modem on their computer can use Mail to forward
a fax to you. In either case, incoming faxes appear exactly like incoming mail
messages in your Mail Inbox. You can view a fax on your screen, print it, save
it on your hard disk, reply to it, or forward it. When you share a fax modem, you might receive faxes for other people ______