__________ the students usually surf __________ the Internet and get information.
| A．60 percents of; in | B．60 percent of; on |
| C．60 percent; in | D．60 percents; on |
__________ the students usually surf __________ the Internet and get information.
| A．60 percents of; in | B．60 percent of; on |
| C．60 percent; in | D．60 percents; on |
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