1.   America Online has even asked for volunteers to test its upgrades free of charge.

2.   And many free BIOS upgrades are available if the tests turn up a problem.

3.   Avis Europe is offering free upgrades in certain groups on its Early Booker program.

4.   All come with manuals, quick reference cards, technical support, one free upgrade and special offers.

5.   But a small number want free upgrades for computers that have become technological dinosaurs, he said.

6.   But often it includes only one or two free upgrades to a database of known viruses.

7.   Connectix says a free upgrade will be available by the time you read this.

8.   If software problems have been discovered, many of these sites will also offer free upgrades and patches to download.

9.   In the meantime, A-Class buyers can bring the cars in to dealers for free upgrades and a replacement of tires.

10.   Is there a free upgrade for this program?

a. + upgrade >>共 175
major 8.97%
free 5.28%
recent 2.64%
significant 2.64%
technological 2.64%
latest 2.37%
future 2.37%
first-class 2.11%
planned 2.11%
costly 1.85%
free + n. >>共 1035
market 7.36%
time 4.30%
safety 3.49%
access 2.67%
election 2.39%
movement 1.91%
service 1.84%
press 1.67%
expression 1.33%
ticket 1.29%
upgrade 0.13%
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