问题
单项选择题
( ) our good relations, we would not have quoted so low a price.
A．But for
B．For
C．If not
D．Except for
答案
参考答案：A
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( ) our good relations, we would not have quoted so low a price.
A．But for
B．For
C．If not
D．Except for
参考答案：A
s后达平衡。如图：