单项选择题

The product was processed ( ) official veterinary supervision.

A．in
B．under
C．after
D．with
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This area has been free from Foot—and—Mouth Disease ( ) two years.
A．for
B．in
C．after
D．before
单项选择题
The products will ( ) from Shanghai to Singapore by sea.
A．Send
B．sent
C．Be send
D．Be sent
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