单项选择题

A．work in
B．work out
C．work over
D．work off
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单项选择题
A．outB．byC．inD．back
A．out
B．by
C．in
D．back
单项选择题
Which has a lot to do with what university administrators and parents alike say has been a big change over the last decade, besides cellphones
A．Web access
B．Stronger presence of parents on campus
C．Offices created to deal with parents’ queries and concerns
D．E-mail
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