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单选题 We must record the endangered ethnic minority languages in China ______ they are forgotten forever
学科：默认课程
时间：2025-12-29 15:06:51
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Many Chinese people start their journey home several weeks ______ the Spring Festival to avoid the peak travel rushA. beforeB. afterC. sinceD. when
题目2单选题
The volunteers rushed to the flood-stricken area in Henan without hesitation, ______ that the local people had already received timely aid from the governmentA. only to findB. findingC. foundD. to have found
题目3单选题
Not long after the completion of China's poverty alleviation campaign, many rural areas ______ remarkable changes in infrastructure and people's living standardsA. witnessedB. have witnessedC. had witnessedD. would witness
题目4单选题
It took Chinese scientists more than a decade ______ they successfully launched the Chang'e-5 lunar probe to bring back lunar samplesA. whenB. beforeC. sinceD. as
题目5单选题
He doubted whether China's high-speed rail could reach remote areas, ______ that the network has covered almost all prefecture-level cities地级市A. only to discoverB. discoveringC. discoveredD. to discover
题目6单选题
The Chinese delegate hadn't finished his speech at the UN climate conference ______ many countries expressed their support for China's carbon neutrality碳中和 proposalA. afterB. sinceC. beforeD. until
题目7单选题
China proposed the Belt and Road Initiative in 2013; not long ______, more than 150 countries joined the cooperation frameworkA. agoB. sinceC. laterD. after
题目8单选题
We should cherish and protect China's wetland resources ______ they are damaged by human activitiesA. beforeB. untilC. whenD. as
题目9单选题
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题目10单选题
We must record the endangered ethnic minority languages in China ______ they are forgotten foreverA. thoughB. afterC. unlessD. before
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