If, in exceptional circumstances, an extension is required, it should ()all bidders before the expiration date and Bank should be notified.A、request uponB、be requested ofC、be requested inD、request of
If, in exceptional circumstances, an extension is required, it should ()all bidders before the expiration date and Bank should be notified.
A、request upon
B、be requested of
C、be requested in
D、request of
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