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Assuming that each has the icosahedral structure,determine how many isomers are possible for the B10C2H12molecule.
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Hair Co manufactures three types of electrical goods for hair: curlers (C), straightening irons (S) and dryers (D.) The budgeted sales prices and volumes for the next year are as follows:
Each product is made using a different mix of the same materials and labour. Product S also uses new revolutionary technology for which the company obtained a ten-year patent two years ago. The budgeted sales volumes for all the products have been calculated by adding 10% to last year’s sales.
The standard cost card for each product is shown below.
Both skilled and unskilled labour costs are variable.
The general fixed overheads are expected to be $640,000 for the next year.
Required:
(a) Calculate the weighted average contribution to sales ratio for Hair Co.
Note: round all workings to 2 decimal places. (6 marks)
(b) Calculate the total break-even sales revenue for the next year for Hair Co.
Note: round all workings to 2 decimal places. (2 marks)
(c) Using the graph paper provided, draw a multi-product profit-volume (PV) chart showing clearly the profit/loss lines assuming:
(i) you are able to sell the products in order of the ones with the highest ranking contribution to sales ratios first; and
(ii) you sell the products in a constant mix.
Note: only one graph is required. (9 marks)
(d) Briefly comment on your findings in (c). (3 marks)
The definition of poverty is a matter of debate. In 1795, a group of English magistrates decided that a minimum in come should be "the cost of a gallon loaf of bread, multiplied by three, plus an allowance for each dependent". Today the Census Bureau defines the threshold of poverty in the United States as the minimum amount of money that families need to purchase a nutritionally adequate diet, assuming they use one third of their income for food. Using this definition, roughly half the American population was poor in the aftermath of the Great Depression of the 1930s. By 1950, the proportion of the poor had fallen to 30 percent and by 1964, to 20 percent. With the adoption of the Johnson administration's antipoverty programs, the poverty rate dropped to 12 percent in 1969. But since then, it has stopped falling. Liberals contend that the poverty line is too low because it fails to take into account changes in the standard of living.
Conservatives say that it is too high because the poor receive other forms of public assistance, including food stamps, public housing subsidies, and health care.
In which of the following years did the poor people constitute the largest proportion of the American population？
A．1973.
B．1987.
C．1969.
D．1983.
A.establishing
B.assuming
C.observing
D.operating
Part A
Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)
The swine flu will probably return in force earlier than seasonal flu usually begins, federal health officials predicted Friday, saying they expected it to erupt as soon as schools open rather than in October or November.
The swine flu is still circulating in the United States, especially in summer camps, even though hot weather has arrived and the regular flu season ended months ago, "so we expect challenges when people return to school, when kids are congregating together," Dr. Anne Schuchat, director of respiratory diseases at the Centers for Disease Control and Prevention, said in a telephone news conference held jointly with vaccine experts from the Food and Drug Administration and the Department of Health and Human Services.
It is still unclear how many doses of a swine flu vaccine will be available by then, and officials have been reluctant to make firm predictions beyond saying that they expect tens of millions, rather than hundreds of millions, and they plan to distribute them to people who are the most vulnerable, like pregnant women and people who are the most likely to encounter the flu, like health care workers.
The number of doses available will depend on how fast seed strains grow, how much protection a small dose provides, and whether immune-system boosters called adjuvants are needed and prove to be safe; adjuvants are not used in American flu vaccines now.
Clinical trials testing those questions are expected to take another couple of months, said Dr. Jesse L. Goodman, director of the F. D．A．'s Center for Biologics Evaluation and Research.
Assuming a swine flu vaccination campaign begins, it will be voluntary, Dr. Schuchat emphasized, but she "strongly encouraged" pregnant women to get both a seasonal flu shot and a swine flu shot when they are available.
The C．D．C．has been closely following the disease in the Southern Hemisphere winter, and it is mimicking the patterns seen in the United States and Mexico in the spring, she said.
Most infections and most serious cases are in children and young adults, and those with underlying conditions, including pregnancy, are the most likely to die. Dr. Schuchat likened the spread's unpredictability to that of popcorn: one city could see an explosion of cases and overwhelmed hospitals while another saw few.
Her most important message, she added, was that "the virus isn't gone, and we fully expect there will be challenges in the fall. "
Why did officials expect the swine flu to erupt as soon as schools open rather than in October or November？
A．There will be sufficient swine flu vaccines then.
B．The swine flu is still circulating.
C．The cold weather then will hinder their work.
D．People will be plunged into panic by then.
A、$17,000
B、$34,000
C、$40,000
D、$80,000
E、$120,000
A.Trying to figure out what the other people really think by asking about their opinions.
B.Assuming you understand what happened to the other people and what their feeling was.
C.Avoiding jumping to conclusions before understanding what the other people are talking about.
D.Imposing your thoughts or feelings on the other people if they misunderstand you.
| Payment terms | Date of collection | Date of presentation | Date of acceptance | Date of payment | Date of document releasing |
| D/P at sight | Sep. 1 , 2006 | ||||
| D/P at 30 days | Sep. 11 , 2006 | ||||
| D/A at 30 days | Oct. 11 ,2006 | ||||
Passage Five
Roman soldiers in some places built long rows of signal towers. When they had a message to send, the soldiers shouted it from tower to tower. If there were enough towers and enough soldiers with loud voices, important news could be sent quickly over distance.
In Africa, people learned to send messages by beating on a series of large drums (鼓). Each drum was kept within hearing distance of the next one. The drum beats were sent out in a special way that all the drummers understood. Though the messages were simple, they could be sent at great speed for hundreds of miles.
In the eighteenth century, a French engineer found a new way to send short messages. In this way, a person held a flag in each hand and the arms were moved to various positions representing different letters of the alphabet (字母表). It was like spelling out words with flags and arms.
Over a long period of time, people sent messages by all these different ways. However, not until the telephone was invented in America in the nineteenth century could people send speech sounds over a great distance in just a few seconds.
51. According to this passage, the Roman way of communication depended very much on______.
A. fine weather
B. high tower
C. the spelling system
D. arm movements
