单项选择题
A．by
B．after
C．of
D．for
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单项选择题
A．expandedB．facilitatedC．supplementedD．compensated
A．expanded
B．facilitated
C．supplemented
D．compensated
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单项选择题
A．nurseriesB．homesC．jobsD．children
A．nurseries
B．homes
C．jobs
D．children
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