A legal maximum price at which a good can be sold is a price

A、Excess of demand over supply

B、Excess of supply over demand

C、Excess of demand over supply

D、Nothing

Insects which eat grain and other stored food can be partially controlled by cooling the grain. But the damage insects cause can be further limited by making them even more susceptible to cold, says a Canadian researcher.

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.

Which of the following is NOT a legal remedy for a property holder to apply to a people’s court where a property right is infringed?

A.An order to confirm the right

B.An order to return the original object

C.An order to provide a guarantee

D.An order to remove the impediment

In ancient Greek, the term euthanatos meant "easy death". Today euthanasia (安乐死) generally refers to mercy killing, the voluntary (自愿) ending of the life of someone who is terminally ill. Like abortion, euthanasia has become a legal, medical, and moral issue over which opinion is divided.

Euthanasia can be either active or passive. Active euthanasia means that a physician or other medical personnel takes an action that will result in death, such as giving an overdose of deadly medicine. Passive euthanasia means letting a patient die for lack of treatment, or stopping the treatment that has begun. Examples of passive euthanasia include taking patients off a breathing machine or removing other life-support systems. Stopping the food supply is also considered passive.

A good deal of the debate about mercy killing originates from the decision-making process. Who decides whether a patient is to die? This issue has not been solved legally in the United States. The matter is left to state law, which usually allows the physician in charge to suggest the option of death to a patient's relatives, especially if the patient is brain dead. In an attempt to make decisions about when their own lives should end, several terminally ill patients in the early 1990s used a controversial suicide device, developed by Dr. Jack Kevorkian, to end their lives.

In parts of Europe, the decision-making process has become very flexible. Even in cases where the patients are not brain dead, patients have been put to death without their approval at the request of relatives or at the suggestion of physicians. Many cases of passive euthanasia involve old people or newborn infants. The principle justifying this practice is that such individuals have a "life not worthy of life".

In countries where passive euthanasia is not legal, the court systems have proved very tolerant in dealing with medical personnel who practice it. In Japan, for example, if physicians follow certain guidelines they may actively carry out mercy killings on hopelessly ill people. Courts have also been somewhat tolerant of friends or relatives who have assisted terminally ill patients to die.

A terminally ill patient is one who ______.

A．gets worse every day

B．can never get well again

C．is very seriously ill in the end

D．is too ill to want to live on

听力原文： An elderly woman yesterday made a legal claim against a department store because it had wrongly accused her of stealing a Christmas card. Ms. Doss White, 72 years old, is claiming $ 3000 damages from the stare for wrongful arrest and false imprisonment. Ms. White visited the store while doing Christmas shopping, but did not buy anything. She was followed through the town by a store manager. He had been told that a customer saw her take a card and put it in her shopping bag. He stopped her at a bookstore as she was reading a book. Ms. White said,"This man, a total stranger, suddenly grasped my bag and asked if he could look in it. "She was taken back to the store and shut in a small room in full view of shoppers for 20 minutes until the police arrived. At the police station she was body - searched and nothing was found. Her lawyer said the department store sent an insincere apology and they insisted that she may have been stealing. The hearing continues today.

(33)

A．She was found stealing in a bookstore.

B．She caught someone in the act of stealing.

C．She admitted having stolen something.

D．She said she was wrongly accused of stealing.

听力原文： An elderly woman yesterday made a legal claim against a department store because it had wrongly accused her of stealing a Christmas card. Ms. Doss White, 72 years old, is claiming $3,000 damages from the store for wrongful arrest and false imprisonment. Ms. White visited the store while doing Christmas shopping, but did not buy anything. She was followed though the town by a store manager. He had been told that a customer saw her take a card and put it in her shopping bag. He stopped her at a bookstore as she was reading a book. Ms. White said, "This man, a total stranger, suddenly grasped my bag and asked if he could look in it." She was taken back to the store and shut in a small room in full view of shopper for 20 minutes until the police arrived. At the police station she was bodysearched and nothing was found. Her lawyer said the department store sent an insincere apology and they insisted that she may have been stealing. The hearing continues today.

(31)

A．She was found stealing in a bookstore.

B．She caught someone in the art of stealing.

C．She admitted having stolen something.

D．She said she was wrongly accused of stealing.

听力原文： An elderly woman yesterday made a legal claim against a department store because it had wrongly accused her of stealing a Christmas card. Ms. Doss white,72 years old, is claiming $3000 damages from the store for wrongful arrest and false imprisonment. Ms. White visited the store while doing Christmas shopping, but did not buy anything. She was followed through the town by a store manager. He had been told that a customer saw her take a card and put it in her shopping bag. He stopped her at a bookstore as she was reading a book. Ms. White said. "This man, a total stranger, suddenly grasped my bag and asked if he could look in it. "She was taken back to the store and shut in a small room in full view of shop peers for 20 minutes until the police arrived. At the police station she was body searched and nothing was found. Her lawyer said the department store sent an insincere apology and they insisted that she may have been stealing. The hearing continues today.

What does the story tell us about the old woman?

A．She was found stealing in a bookstore.

B．She caught someone in the act of stealing.

C．She admitted having stolen something.

D．She said she was wrongly accused of stealing.