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

Gambling is legal in western countries.( )

“Gambling is a way to make money withoutworking.” This is a good definition.

The Chinese government has officially the global gambling (赌博) industry, which makes it likely that Chinese citizens will be gambling much less in China, its neighboring countries, and the US.?declare war on)

Gambling is lawful in this state. A: legal B: irresistible C: enjoyable D: profitable

Gambling is lawful in this state. A: legal B: B．irresistible C: C．enjoyable D: profitable

There are always people who dream of making a from gambling, even though they know the chances are slim.

Mrs. Lang did all housework because () A: she couldn’t find any work B: she thought her husband was tired C: her husband spent all time in gambling D: she wouldn’t stop her husband gambling

William never lends himself to （）at cards. A: gambling B: gamble C: having gambled D: have gambled

What activities from the list are nature-based tourism?__. A: Whale watching B: Gambling C: Hiking D: Kayaking