单项选择题

A．He wonders about the usefulness of the protest.
B．He thinks the present tuition is fair.
C．He doesn’t know how many students protested.
D．He doesn’t know how much the school charges for tuition.
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单项选择题
A．Because they always win in the Olympic Games.B．Because they base their education on sports.C．Because they have many sports stars.D．Because they learn and play sports a lot.
A．Because they always win in the Olympic Games.
B．Because they base their education on sports.
C．Because they have many sports stars.
D．Because they learn and play sports a lot.
填空题
Compared with traditional computer science, web science includes the research ______.
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