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【单选题】
Trees can help ______ the air to keep it ______. [ ]A.
clean, clean
B.
cleaning, cleaning
C.
to clean; cleaning
D.
cleaning; clean
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【单选题】The author implies that______.
A.
the guild system was more efficient
B.
the domestic system was capitalistic
C.
the technical advances stimulated the guild system
D.
the domestic system was not as efficient as the guild system
【简答题】《本草纲目》的载药数是A.载药365种 B.载药730种 C.载药844种 D.载药1500种 E.载药1892种 《本草经集注》的载药数是A.载药365种 B.载药730种 C.载药844种 D.载药1500种 E.载药1892种
【单选题】An overall indication of the dependability of the data may be obtained by examining all of the following EXCEPT the ________.
A.
expertise of the source
B.
reputation of the source
C.
trustworthiness of the source
D.
cost of the source
E.
source being the original source rather than an acquired source
【简答题】简述旅游收入的作用? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【简答题】某政府投资工程预计于2008年1月1日开工，该工程的开工报告于2007年12月20日被批准。根据我国《建筑法》的规定，建设单位最迟应当于（ ）前开工。
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