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单项选择题

Parents have a legal _______ to ensure that their children are provided with efficient education suitable to their age.

A．impulse
B．influence
C．obligation
D．sympathy

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热门试题

单项选择题At last they _______ three figures moving in the distance.

A．turned out
B．made out
C．worked out
D．found out

单项选择题Some fish have a greater _______ for acid water than others.

A．tolerance
B．resistance
C．dependence
D．persistence