[单项选择]Which of the following about a well functioning market is FALSE（）
A. numerous buyers and sellers are willing to trade at prices about and below the current price.
B. the current price of a security fully reflects all the information currently available about the security.
C. market participants can buy and sell quickly at a known price.

[单项选择]Which of the following statements about initial margin requirements in the U.S. is FALSE（）
A. If the stock price decreases, the investor’ s relative margin will decline. 
B. Currently, the initial margin requirement is 60 percent. 
C. The Federal Reserve Board specifies the minimum margin requirements.

[单项选择]Which one of the following statements about the marginal cost of capital (MCC) is TRUE（　）
A. The MCC is the cost of the last dollar obtained from bondholders.
B. The MCC is the cost of the last dollar obtained from shareholders.
C. The breakpoint on the marginal cost curve is calculated by dividing retained earnings by the equity weight in the capital structure.

[单项选择]
Vitamins, which come in many different types all of which are quite diverse in chemical configuration and function, can be any of several organic substances that are separated into water-soluble and fat-soluble groups. Originally defined as organic compounds obtainable in a normal diet and capable of maintaining life and promoting growth, vitamins are differrent from carbohydrates, fats, and proteins in function, as well as in the quantities in which organisms require them. So critical are vitamins to a body’s essential strength and health that if they are absent from the diet or not properly absorbed by an organism, a specific deficiency disease may develop.
The term "vitamin" originated from "vitamine", a word first used in the early 19th century to designate a group of compounds considered vital for life (though the term "accessory food factor" sometimes is used interchangeably to refer to these substances).
A. Our body’s operation is dependent on vitamins, which means that the body would not function without vitamins.
B. The term "vitamin" was first used in the 19th century, and until then, they were known as the "accessory food factor".
C. Insufficient consumption of vitamins may cause our body to stop functioning properly.
D. Lack of vitamin causes night blindness as well as many disorders that involve the eye and organs related to it.

[单项选择]What does Joan do for a livingOn which day will Mary meet Henry
A. Tuesday
B. Monday
C. next Monday

[填空题] Wise buying is a positive way in .which you can make your money go further. The (61)______ you go about purchasing an article or a service can actually (62)______ you money or can add (63)______ the cost. Take the (64)______ example of a hairdryer. If you are buying a hairdryer, you might (65)______ that you are making the (66)______ buy if you choose one (67)______ look you like and which is also the cheapest (68)______ price. But when you get it home you may find that it (69)______ twice as long as a more expensive (70)______ to dry your hair. The cost of the electricity plus the cost of your time could well (71)______ your hairdryer the most expensive one of all. So what principles should you (72)______ when you go out shopping If you (73)______ your home, your car or any valuable (74)______ in excellent condition, you’’ll be saving money in the long (75)______ . Before you buy a new (76)______ , talk to someone who owns one. If you can, use it or borrow it
A. A．component
B．element
C．item
D．particle