问题
单项选择题
There has been a nation-wide shortage of building materials, ( )which the trade is only just recovering.
A．for
B．on
C．at
D．from
答案
参考答案：D
解析： 本句翻译为“全国性的建筑材料短缺是由于贸易的刚刚复苏。”
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There has been a nation-wide shortage of building materials, ( )which the trade is only just recovering.
A．for
B．on
C．at
D．from
参考答案：D
解析： 本句翻译为“全国性的建筑材料短缺是由于贸易的刚刚复苏。”