首页
登录
职称英语
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
2023-07-29
55
管理
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] 【M4】
选项
答案
began改成begun
解析
此处考查动词的时态。begin的过去分词形式是begun。
转载请注明原文地址:http://tihaiku.com/zcyy/2878725.html
相关试题推荐
ScientistsWeighOptionsforRebuildingNewOrleansAsexper
ScientistsWeighOptionsforRebuildingNewOrleansAsexper
ScientistsWeighOptionsforRebuildingNewOrleansAsexper
ScientistsWeighOptionsforRebuildingNewOrleansAsexper
ScientistsWeighOptionsforRebuildingNewOrleansAsexper
[originaltext]W:Airpollutionisoneofthemostseriousproblemsintheworld
[originaltext]W:Airpollutionisoneofthemostseriousproblemsintheworld
Scientistshavedevelopedanewcancerdrug.Sofar,theyhavetesteditonlyon
Scientistshavedevelopedanewcancerdrug.Sofar,theyhavetesteditonlyon
Scientistshavedevelopedanewcancerdrug.Sofar,theyhavetesteditonlyon
随机试题
OurplanetEarthis4,600millionyearsold.Ifwereduce【M1】______thi
[audioFiles]audio_eusm_j70_001(20082)[/audioFiles]A、Heissigninghisnameona
Averyimportantworldproblemistheincreasingnumberofpeoplewhoactual
Hisremarkswere______annoyeverybodyatthemeeting.A、soastoB、suchastoC
Thecountry’seconomicfutureisseriously________bythemassimmigrationofyo
当S与P是交叉关系或全异关系时,在这两种情况下都假的判断是()。A.SAP B
纵向加密认证是电力监控系统安全防护体系的纵向防线。采用认证、加密、访问控制等技术
投资者将基金份额转让给某有限公司,且该公司为合格投资者,那么基金份额受让后该公司
一个由4个数字(0-9之间的整数)组成的密码,每连续两位都不相同,问任意猜一个符
下列情形中应当按照抢劫罪处罚的是A.驾驶机动车夺取他人财物时因被害人不放手而强行
最新回复
(
0
)