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1.单项选择题
A．operations
B．utilization
C．accomplishments
D．extreme importance
2.单项选择题
A．triumphed
B．beaten
C．seized
D．conquered
3.单项选择题
A．give up
B．give away
C．give in
D．what
4.单项选择题
A．capacity
B．conservation
C．consequence
D．constancy
5.单项选择题
A．at a time
B．at times
C．at time
D．in time
6.单项选择题
A．important extremely
B．extreme importance.
C．extremely importance
D．of extreme importance
7.单项选择题
A．while study
B．for studying
C．studying
D．while studying
8.单项选择题
A．think through
B．think over
C．think of
D．think back
9.单项选择题
A．results from
B．brings forward
C．results in
D．comes off
10.单项选择题
A．On
B．By
C．In
D．For