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  3. An international team of scientists is studying the problem of pollution an

An international team of scientists is studying the problem of pollution an

游客2024-03-01  53
问题     An international team of scientists is studying the problem
of pollution and dust in Asia. One hundred thirty scientists
from twelve countries have gathered in the western Pacific
area to observe thick dust storms. They will observe the
dust storms which they mix with some of the world’s heaviest       【M1】 ______
pollution. The thickest dust storms in recent years
reported in Beijing, China and other Asian cities last spring.     【M2】 ______
The dust storms come from deserts in China and Mongolia.           【M3】 ______
This year, similar dust storms have began moving east              【M4】 ______
toward large Asian cities and the northwest Pacific Ocean.
    The dust storms happen in winter over deserts high             【M5】 ______
below sea level. In the spring, the storms trove east, over large
dries in China, Japan and Korea. By summer, rainstorms break
up the dust and help increase pollution in the air.                 【M6】 ______
    The scientists plan observe the dust storms through the         【M7】 ______
middle of May. They are using research ships, airplanes, satellites
and instrument on the ground to gather information.                 【M8】 ______
    Aerosols(悬浮颗粒) are very small particles in the air.
The scientists are studying aerosols that contain sulfate(硫酸
盐) and carbon are produced by the burning of soft coal, wood       【M9】 ______
and plants. Barry Hubert of the University of Hawaii is the leading
investigators for the study. He says developing nations in Asia     【M10】 ______
use a mixture of fuels that are not used in other areas.
[br] 【M6】
选项
答案 increase改成decrease
解析 此处考查对句意的推理能力。根据句意，因为rainstorms break up(削弱)the dust，因此应该是decrease。
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