[单项选择]Suppose you are driving on a highway with three lanes going in your direction and you come upon a toll plaza with six toll booths. Three toll booths are straight ahead in the three lanes of traffic, and the three other booths are off to the right. Which lane should you choose There are usually enough people searching for the shortest line so as to make all the lines about the stone length.
The term profit in economics has a very precise meaning. Economists, however, often loosely refer to "good deals" or profitable ventures with no risk as profit opportunities. Using the term loosely, a profit opportunity exists at the toll booths if one line is shorter than the others. The general view of economics is that profit opportunities are rare. At any one time there are many people searching for such opportunities, and as a consequence few exist.
At major banks in big cities, you can buy foreign currencies. The prices of these currencies are determined in world money markets. With d
A. Doubtful.
B. Cautious.
C. Consenting.
D. Ironic.

[单项选择]Suppose you are driving on a highway with three lanes going in your direction and you come upon a toll plaza with six toll booths. Three toll booths are straight ahead in the three lanes of traffic, and the three other booths are off to the right. Which lane should you choose There are usually enough people searching for the shortest line so as to make all the lines about the stone length.
The term profit in economics has a very precise meaning. Economists, however, often loosely refer to "good deals" or profitable ventures with no risk as profit opportunities. Using the term loosely, a profit opportunity exists at the toll booths if one line is shorter than the others. The general view of economics is that profit opportunities are rare. At any one time there are many people searching for such opportunities, and as a consequence few exist.
At major banks in big cities, you can buy foreign currencies. The prices of these currencies are determined in world money markets. With d
A. profit opportunities. B. the market.
B. the investors.
C. profit.

[单项选择]
Suppose you are driving off a highway with three lanes going in your direction and you come upon a tell plaza with. six toll booths. Three toll booths are straight ahead in the three lanes of traffic, and the three other booths are off to the right. Which lane should you choose It is usually the case that the wait time is approximately the same no matter what you do. There are usually enough people searching for the shortest line so as to make all the lines about the same length. If one line is much shorter than the others, cars will quickly move into it until the lines are equalised. There are usually enough drivers searching for the fastest line to equalise the average wait time.
The term profit in economics has a very precise meaning. Economists, however, often loosely refer to "good deals" or profitable ventures with no risk as profit opportunities. Using the term loosely, a profit opportunity exists at
A. You need to ignore a hot tip offered.
B. You need to pay for a hot tip offered.
C. You need to justify a hot tip offered.
D. You need to take quick advantage of a hot tip offered.

[单项选择]The police investigation discovered that three young men were （） in the robbery.
A. caught     
B. involved     
C. connected  
D. tightened