单项选择题

Our research confirmed the ______ that when children have many different caregivers, important aspects of their development are liable to be overlooked.

A．syndrome
B．synthesis
C．hierarchy
D．hypothesis
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单项选择题
They are trying to ______ the risk as much as they can by making a more thorough investigation of the market.
A．summarize
B．minimize
C．harmonize
D．jeopardize
单项选择题
He was given major responsibility for operating the remote manipulator to ______ the newly launched satellite.
A．retrieve
B．retreat
C．embody
D．embrace
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