单项选择题


A．effect
B．affect
C．reflect
D．perfect
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单项选择题
Forests can provide beauty and prevent ______ . Therefore, we should spare no efforts to protect forests.
A．erosion
B．corruption
C．decay
D．spoil
单项选择题
He failed to carry out some of the provisions of the contract, and now he has to ______ the consequences.
A．answer for
B．run into
C．abide by
D．step into
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