The shopkeeper gave me a 100-yuan note instead of a 10-yuan note from mistake.

Given that an investor’s utility function is u=ln(w), he faces a gambling with an entry fee of 18 yuan: 10% probability to get 90 yuan, 90% probability to get 10 yuan, then this investor will: A: Accept this gambling and pay an entrance fee of 90 yuan B: Refused this gambling, but if the entry fee is less than 12.46 yuan, will accept this gambling C: Reject this gambling, no matter how much the entry fee is reduced D: Reject this gambling, but only accept the gambling if the entry fee drops to 5.54 yuan

A．100 yuan a night.B．150 yuan a night.C．200 yuan a night.D．250 yuan a night. A: 100 yuan a night. B: 150 yuan a night. C: 200 yuan a night. D: 250 yuan a night.

The meaning of the first Yuan in “Yuan Ming Yuan” means “Yuan Tong”. ( )

The driver was told to pay ____ to reclaim(收回) his vehicle. A: 5,200 yuan B: 2,000 yuan C: 2,500 yuan D: 500 yuan

From May 6, pedestrians(行人) ______10 yuan if they run red lights, according to Beijing traffic rules.

U4 If the original price of a dress is 800 yuan，and today it is sold with a sign “20% off”, how much should the buyer pay? A: 160 yuan B: 320 yuan C: 640 yuan D: 1000 yuan

Zhang Lei plans to ( ) every month. A: deposit 1,000 yuan B: deposit of 1,000 yuan C: deposit with 1,000 yuan D: deposit over 1,000 yuan

1803b3614ec0d8a.png1Chian yuan =0.16＄即 1 ＄= ( ) Chian yuan

Tiemuzhen changed the reign title into Yuan and was known as Yuan Shizu.( )