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单项选择题

A．Because she can pay the higher fuel costs.
B．Because rising fuel costs can benefit the environment.
C．Because she can save more money.
D．Because she can cut her consumption.
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单项选择题42（）

A．connects
B．equivalent
C．experiences
D．experiments
E．figure
F．gradually
G．heartfelt
H．immediately
I．leave
J．powerful
K．proving
L．reluctant
M．strength
N．suppose
O．tools

单项选择题How does Wieman look at the traditional lectures according to the third paragraph（）

A．They have lasted for only a short period of time.
B．They continue to play an essential role in teaching.
C．They can make students more active in study.
D．They have proved to be ineffective.