As regarding TBLT, there are some potential constr...

The major concern expressed by underdeveloped nations regarding current economic conditions is that______.

A．their preoccupation with profits overlooks the need for more humanistic values

B．their lawyers are ignorant of international trade laws

C．there is a great need for physicians

D．they have not been able to make the best use of their own resources

听力原文：W: It is said that there are some check authorization systems currently in use.

M: But they are cumbersome relative to the computerized credit card validation systems.

Q: What does the man think of the check authorization systems?

(20)

A．They are convenient.

B．They are advanced in technology.

C．They are cumbersome.

D．They are computerized.

Questions 26 to 30 are based on the following passage. There are some each phenomena you can count on, but the magnetic field, someday is not of them. It fluctuates in strength, drifts from its axis, and every few 100,000 years undergo, dramatic polarity reversal-a period when North Pole becomes South Pole and South Pole becomes North Pole. But how is the field generated, and why is it so unstable?

Groundbreaking research by two French geophysicists promises to shed some light on the mystery. Using 80 metres of deep sea sediment (沉淀物) core, they have obtained measurements lots of magnetic-field intensity that span 11 polarity reversals and four million years. The analysis reveals that intensity appears to fluctuate with a clear, well-defined rhythm. Although the strength of the magnetic field varies irregularly during the short term, there seems to be an inevitable long-term decline preceding each polarity reversal. When the poles flip—a process that takes several hundred thousand years-the magnetic field rapidly regains its strength and the cycle is repeated.

The results have caused a stir among geophysicists. The magnetic field is thought to originate from molten (熔化的) iron in the outer core, 3,000 kilometers beneath the earth’s surface. By studying mineral grains found in material ranging from rocks to clay articles, previous researchers have already been able to identify reversals dating back 170 million years, including the most recent switch 730,000 years ago. How and why they occur, however, has been widely debated. Several theories link polarity flips to external disasters such as meteor (陨星) impacts. But Peter Olson, a geophysicist at the Johns Hopkins University in Baltimore, says this is unlikely if the French researchers are right. In fact, Olson says intensity that predictably declines from one reversal to the next contradicts 90 percent of the models currently under study. If the results prove to be valid geophysicists will have a new theory to guide them in their quest to understand the earth’s inner physics. It certainly points the direction for future research.

第26题：Which of the following titles is most appropriate to the passage?

A) Polarity Reversal: A Fantastic Phenomenon of Nature.

B) Measurement of the Earth’s Magnetic-Field Intensity.

C) Formation of the Two Poles of the Earth.

D) A New Approach to the Study or Geophysics.

There are some egg tarts.

Bee Stings and Insect Bites

Wash the sting or bite. Put some meat tenderizer(软膏) on a handkerchief and then put the handkerchief on the bite for half an hour. To avoid insect bites, it is helpful to eat some garlic.

Burns

Put the burn under cold water or put a cold handkerchief on it. Then apply aloe(芦荟) juice to the burn. It is important not to put ice on the burn.

Colds

Lots of people eat hot chicken soup, they find it clears the head and the nose.

Headaches

Apply an ice pack or cold cloth to your head, or put your hands into hot water and leave them there for several minutes.

Insomnia

Drink a large glass of warm milk. It's also a good idea to soak in a warm bath.

What is the purpose to eat some garlic according to the passage？

It can ______.

There are some Chinese students in her school.

A．True

B．False

There are some______(indicate)that they are generous young souls.