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Our principal, a mean old lady, ______ a travel for ages, but to our great disappointment
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A．Attention.B．Food.C．A laugh.D．Love.
听力原文： The UN Security Council has unanimously adopted a resolution renewing the UN peace-keeping force in Rwanda for another 6 months while reducing its size by more than half. The UN resolution authorizes the reduction of the UN assistance mission in Rwanda from 5,000 troops to 2,300 hoops within three months and to 1,800 troops within four months. The resolution is a compromise between a proposal by UN Secretary General to cut the UN force in half and Rwandans' wish for an even larger reduction.. Rwandan authorities say they have assumed responsibility for national security following last year's Hutu-led genocide, reducing the need for UN peace-keeping. The UN force will also help with the training of the national police force and with the delivery of humanitarian aid.
The reduction of ______ UN peace-keeping troops within 4 months from Rwanda is authorized.
听力原文： Aid workers in Mozambique say they're increasingly confident that they are coming to terms with the humanitarian crisis that follow the devastating floods. Helicopters and planes have been working flat-out to get supplies through to areas of need. The World Health Organization has warned that malaria has risen sharply after the flooding. This report from Jim Fish in Maputong: "The skies over Mozambique have never been this busy. Relays of helicopters and aircraft crisscross to and fro ferrying food and supplies to the stricken areas. A fleet of more than 50 aircraft are now operating, averaging 200 flights per day. At one forward supply depot ill the town of Pamela, helicopters were arriving every few minutes, ferrying sacks of maize, and rice and beans out to where the flood survivors are congregated, But there are still pockets of people who have not received food or fresh water for over a week."
Aid workers in Mozambique say they are confident that ______.
We invited staff volunteers who had a strong liking for either CocaCola Classic or Pepsi, Diet Coke, or Diet Pepsi. These were people who thought they'd have no trouble telling their brand from the other brand.
We eventually located 19 regular cola drinkers and 27 diet cola drinkers. Then we fed them four unidentified samples of cola one at a time, regular colas for the one group, diet versions for the other. We asked them to tell us whether each sample was Coke or Pepsi; then we analyzed the records statistically to compare the participants' choices with what mere guesswork could have accomplished.
Getting all four samples right was a tough test, but not too though, for people who believed they could recognize their brand. In the end, only 7 out of 19 regular cola drinkers correctly identified their brand of choice in all four trials. The diet cola drinkers did a little worse -- only 7 out of 27 identified all four samples correctly.
While both groups did better than chance would predict; nearly half the participants in each group made the wrong choice two or more times. Two people got all four samples wrong. Overall, half the participants did about as well on the last round of tasting as on the first, so fatigue, or taste burnout, was not a factor. Our preference test results suggest that only a few Pepsi participants and Coke fans may really be able to tell their favorite brand by taste and price.
According to the passage the preference test was conducted in order to ______.
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