单项选择题

Export documentation may be required for non-EU destinations.Packages sent outside the EU

A． must be documents only.
B． will need special documents.
C． might need special documents.
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单项选择题
Motorway technology improves flow of rush hour traffic.
A. There are fewer accidents during rush hour.
B. There is less traffic during rush hour.
C. There ate fewer traffic jams during rush hour.
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