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Just like Hybrid corn, the CPD formula should also ensure ______.
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更多“Just like Hybrid corn, the CPD formula should also ensure ______.”相关的问题
第1题
A．Y
B．N
C．NG
第2题
Part A
Directions :
Read the following three texts. Answer the questions on each text by' choosing A, B, Cor D. Mark your answers on，ANSWER SHEET1.
Text 1
Whenever Catherine Brown, a 37-year-old journalist, and her friends, professionals in their 30s and early 40s, meet at a London cafe, their favorite topic of conversation is relationships: men's reluctance to commit, women's independence, and when to have children-or, increasing-Iy， whether to have them at all. "With the years passing my chances of having a child go down, but I won't marry anyone just to have a child," says Brown. To people like Brown, babies are great-if the timing is right. But they're certainly not essential.
In much of the world, having kids is no longer a given. "Never before has childlessness been an understandable decision for women and men in so many societies," says Frank Hakim at the London School of Economics. Young people are extending their child-free adulthood by postponing children until they are well into their 30s, or even 40s and beyond.
A growing share are ending up with no children at all. Lifetime childlessness in western Germany has hit 30 percent among university-educated women, and is rapidly rising among lower-classmen. In Britain, the number of women remaining childless has doubled in 20 years.
The latest trend of childlessness does not follow historic patterns. For centuries it was not unusual for a quarter of European women to remain childless. But in the past，childlessness was usually the product of poverty or disaster, of missing men in times of war. Today the decision to have-or not have-a child is the result of a complex combination of factors, including relationships, career opportunities, lifestyle. and economics.
In some cases childlessness among women can be seen as a quiet form. of protest. In Japan, support for working mothers hardly exists. Child care is expensive, men don't help out, and some companies strongly discourage mothers from returning to work. "In Japan, it's career or child，"says writer Kaori Haishi . It's not just women who are deciding against children; according to a re-cent study, Japanese men are even less inclined to marry or want a child. Their motivations, though, may have more to do with economic factors.
46. Catherine Brown and her friends feel that having children is not _________
[ A] totally wise
[ B] a huge problem
[ C] a rational choice
[ D ] absolutely necessary
第4题
Planning and People
In all kinds of organizations--companies, schools, hospitals, etc. --decisions appear correct in theory but do not work in practice. There are many reasons for this. To illustrate the problems involved we will consider four cases where different decisions have to be taken.
Case No. 1
The manager of a shipping company was interested in using large metal containers for the company's cargo instead of conventional methods of loading and unloading. He discovered that the use of containers was less expensive and quicker than conventional methods. More cargo could be sent at one time and delays on the way were shorter. The only major disadvantage (apart from the initial cost of the containers) was that not all ships could take them. However, the manager believed that his company could find enough ships for their containers. His plan to use containers was adopted by the board of directors. Unfortunately, however, it was never put into practice. The dockers heard about the plan and did not like it. The reason was that the containers would make about a quarter of the dockers redundant. The plan was killed.
The comparison of containers with conventional methods is shown in the following table.
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Case No. 2
A solar pump was built in a small desert village. The pump used the desert's most common resource-sunlight, to increase its greatest necessity-water. Solar collectors were used to collect the sun's rays. Flat collectors can be stationary and do not have moving parts which can be broken in sand storms. The system used the 20 degree centigrade temperature difference between the solar collectors and the ground water to work a gas expansion engine which pumped water from under the ground.
Some of the social effects of the new pumps were planned for. Children aged 6 to15 used to bring the water from wells, where they met the old men of the village and received informal education from them. In order to replace this, a school was also included in the project. But the project had not considered the traditional power structure of the village. As soon as the foreign experts left, the two richest men in the village took control of the pump and started selling water to everyone else. The result was that the majority of people were poorer than before.
Case No. 3
In 1946 there was a program in the Rio Grande valley to substitute hybrid corn for the native corn. The native corn was of poor nutritional quality and gave a poor quantity of grain while the hybrid corn was of excellent quality and gave about three times as large a crop as the native variety. In the first year half of the 84 farmers in the village planted hybrid corn and doubled the corn production. Three years later, however, only three farmers planted hybrid corn. The others were planting the traditional variety. At the beginning of the project the program leader studied the ecology of the area and showed films demonstrating the superiority of the new corn. The farmers agreed that the hybrid corn had great advantages. The size of the crop confirmed these advantages. Why did they stop planting it？ The answer was simple: their wives did not like it. They complained that it wasn't good for cooking and they didn't like the flavor.
Case No. 4
The manager of a large office building had received many complaints about the lift service in the building. He engaged a group of engineers to study the situation and make recommendations for improvement. The engineers suggested two alternative solutions:
1. adding more lifts of the same types;
2. replacing the existing lifts by faster ones.
The manager decided that both alternative solutions were too expensive. So the firm's psychologist offered to study the problem. He noticed that many people ar
A．Y
B．N
C．NG
第5题
A.In
B.By
C.Of
D.From
第7题
A: You sound like you have a cold. B: ______.
A．It's just the radio sound.
B．Yes, I'm sick.
C．I'll wear your coat.
D．It's a very cold winter.
第8题
The computer has dramatically affected just like photographic lenses are constructed.
A．is the way we constructed the photographic lenses.
B．that the way we constructed the photographic lenses.
C．which way do photographic lenses are constructed.
D．the way photographic lenses are constructed.
第9题
from shivering and just smile like spring had arrived
A.dreamed
B.stated
C.claimed
D.wondered
第10题
A．Koizumi's idea of tax increase is not good
B．Koizumi's capitalism is just like that of George Bush
C．Koizumi looks young and handsome.
D．Capitalism is going to do big damage Io poor people.
