The World Health Organization says its ten-year campaign to remove leprosy as a world health problem has been successful. Doctor

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问题    The World Health Organization says its ten-year campaign to remove
leprosy as a world health problem has been successful. Doctor Brundtland,
head of the WHO, says a number of leprosy cases around the world bas              【M1】 ______
been cut of ninety percent during the past ten years. She says efforts are        【M2】 ______
continuing to complete end the disease.                                           【M3】 ______
   Leprosy is caused by bacteria spread through liquid from the nose
and mouth. The disease mainly effects the skin and nerves. However, if            【M4】 ______
leprosy is not treated it can cause permanent damage for the skin, nerves,        【M5】 ______
eyes, arms or legs.
   In 1999, an international campaign began to end leprosy. 7he WHO,
governments of countries most affected by the disease, and several other
groups are part of the campaign. This alliance guarantees that all leprosy
patients, even they are poor, have a right to the most modern treatment.          【M6】 ______
   Doctor Brundtland says leprosy is no longer a disease that requires
life-long treatments by medical experts. Instead, patients can take that is       【M7】 ______
called a multi-drag therapy. This modem treatment will cure leprosy in 6
to 12 months, depend on the form of the disease. The treatment combines           【M8】 ______
several drugs taken daily or once a month, The WHO has given multi-drug
therapy to patients freely for the last five years, qbe members of the alliance   【M9】 ______
against leprosy plan to target the countries which still threatened by leprosy.   【M10】______
Among the estimated 600,000 victims around the world, the WHO believes
about 70% are in India. The disease also remains a problem in Africa and
South America.
【M2】

选项

答案将of改为by。

解析 “表示增减的动词+by+百分数/数字”表示净增加或减少,例如:The production of machine tools has increased by 200.机床的产量增加了200台。The constructional cost decreased by10%.造价降低了10%。
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