You have to pay a(n)premium for express delivery. A: extra charge B: extra price C: extra tip D: extra bonus

-What happened to the priceless works of art? -________.

both priceless and ____ A: Valuable B: Worthless

The palace is full of priceless ( ). A: relic B: antiques

According to this courese heritage is our priceless fortune.

Water is becoming an increasingly ____ resource. (precious or priceless)

Works of art and priceless ______ records were ruthlessly destroyed in the war.

Wehave______medicalservice. A: priceless B: freecharge C: nocharge D: free

The idiom “ 价值连城 ” derives from a story about a priceless piece of jade.

If demand is price elastic and price decreases, then A: the extra revenue from the extra units sold is exactly offset by the loss in revenue due to the lower price B: more information is necessary to determine what happens to total revenue C: the extra revenue from the extra units sold is less than the loss in revenue from the lower price D: the extra revenue from the extra units sold exceeds the loss in revenue from the lower price