Kate learnt that __________. A: there is a shop that sells good second-hand bikes B: the police have a sale of abandoned bikes C: there is a sale of second-hand bikes every two months D: the police sell abandoned bikes to a second-hand shop

The finished goods include touring bikes(deluxe, professional) in three colors and off-road bikes(men, women).

How did the shared bikes in Copenhagen in 1995 make profit? （ ）

There are 12_______ at the bus stop. A: buses B: ships C: cars D: bikes

More and more people are taking to their bikes as a(n) _____ to driving or using public transport.

Cyclos are also called__________. A: motor dups B: trishaws C: motor bikes

Suppose a country produces only bikes and clothing. The country achieves an efficient allocation of resources when A: it can't produce any more bikes unless it gives up clothing. B: it produces equal amount of bikes and clothes. C: the marginal social benefit of producing a bike equals the marginal social cost of producing a bike. D: the prices charged for the goods are as low as possible.

“There is no need for me to bike with a helmet. Everyone bikes without such a helmet.”犯了哪种逻辑错误?

Motor bikes _________(禁止) driving in the highway. A: are prevented from B: are prohibited from C: are banned D: are forbidden by

The weather has encouraged more people to buy bikes。 A: Right B: Wrong C: Doesn't say