Frank Dewey Esquire from the firm of Dewey, Cheatum, and Howe, has been offered an upfront retainer of $30,000 to provide legal services over the next 12 months to Taggart Transcontinental. In return for this upfront payment, Taggart Transcontinental would have access to 8 hours of legal services from Frank for each of the next 12 months. Frank's normal billable rate is $250 per hour for legal services. Assuming that Dewey's cost of capital is 12% EAR, then the number of potential IRRs that exist for this problem is equal to:
A、0
B、1
C、2
D、12
第2题
A.Right
B.Wrong
C.Not mentioned
第3题
A) be aware of the potential danger involved
B) guard against being cheated by the house agent
C) take the quality of the house into consideration
D) examine the house carefully before making a decision
第4题
Insect pests die if they freeze, but many have the ability to become "supercool", remaining alive even when the temperature drops to - 10℃. However, Paul Fields of the Agriculture Canada Research Station in Winnipeg has discovered that the ability of these insects to supercool can be seriously affected by "ice-nucleating-active bacteria". When the bacteria are present, the insects freeze and die at a higher temperature than normal.
Ice-nucleating-active bacteria are found naturally on most plant leaves. They are also grown commercially for use in cloud seeding and in making artificial snow.
Fields added these bacteria to wheat which was stored at a temperature of - 10℃ and contained the rusty grain beetle. He found that when the bacteria accounted for only 10 parts per million of the grain, the beetles' supercooling point rose from - 11.3℃ to - 7.1℃, so more died. At concentrations of 100 ppm or 1000 ppm, the bacteria increased the supercooling point to as high as -6.3℃, which resulted in more than 75 percent of the beetles dying.
Fields also applied the bacteria to two other species of grain beetle, Sitophilus granarius and Oryzaephilus surinamensis, keeping them at - 10℃. He found that more of these beetles also died. First, though, he gradually acclimatized some of the insects to cold, to simulate the increase in tolerance to cold which they normally develop as winter approaches. Fields found that the insects that had been acclimatized were less affected by cold than the beetles that had not been acclimatized, but that more of them still died at - 10℃.
Fields says that the technique of using ice-nucleating-active bacteria leaves no noxious chemical residues and poses little risk to the people who apply the treatment. It is also effective against insects which have become resistant to pesticides.
Which of the following statements about ice-nucleating-active bacteria is true?
A.They may cool the grain to - 10℃.
B.They can weaken the beetles' resistance to coldness.
C.They can be grown on most plant leaves.
D.They are used only in biological researches.
第5题
[A] be aware of the potential danger involved
[B] guard against being cheated by the house agent
[C] take the quality of the house into consideration
[D] examine the house carefully before making a decision
第6题
A.be aware of the potential danger involved
B.guard against being cheated by the house agent
C.take the quality of the house into consideration
D.examine the house carefully before making a decision
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