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【单选题】
土地潜力评价是指主要依据土地的( )及其对于土地的某种持续利用的限制程度,就土地在该种利用方面的潜在能力对其进行等级划分。A.
自然性质
B.
社会性质
C.
经济性质
D.
自然性质和经济性质
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举一反三
【简答题】I have written to
my pen pal (笔友) and now I’m ______ his letter. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace> (2.0分)A. looking
for B. looking
after C. looking
forward to D. ...
【简答题】I have written to her because she phoned me shortly afterwards. (couldn't, needn't)A. needn't
【单选题】I have written to her because she phoned me shortly afterwards. (couldn't, needn't)
A.
couldn't
B.
needn't
【单选题】( ) your address, I would have written to you.
A.
Did I know
B.
Were I to know
C.
Had I known
D.
If I should know
【简答题】在工程机械设备上,电源系统由的 、 、相关线路等组成。
【简答题】工程机械电源系统由 、 、 、 相关线路等组成。
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