单项选择题

Space exploration promises to open up many new territories for human settlement, as well as ______ the harvest of mineral resources.

A．leads to
B．to lead to
C．leading to
D．lead to
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单项选择题
Physics is the present-day equivalent of ______ used to be called natural philosophy from which most of present-day science arose.
A．that
B．all
C．which
D．what
单项选择题
Some women ______ a good salary in a job instead of staying home, but they decided not to work for the sake of the family.
A．most make
B．should have made
C．would make
D．could have made
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