问题
单项选择题
Attention is called to the fact in many cases pipelines are not buried and charted depth may be decreased（）up to teo meters.
A.with
B.by
C.on
D.in
答案
参考答案：B
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Attention is called to the fact in many cases pipelines are not buried and charted depth may be decreased（）up to teo meters.
A.with
B.by
C.on
D.in
参考答案：B