logo - 刷刷题
下载APP
【判断题】

Air pollution is normally defined as the air that contains one or more chemicals in high enough concentrations to harm humans, animals, vegetation or materials.

A.
正确
B.
错误
举报
如何制作自己的在线小题库
参考答案：
参考解析：
.
刷刷题刷刷变学霸
举一反三

【多选题】The biological pollutants include _________. ()
A.
various microorganisms
B.
viruses
C.
worms
D.
algae
查看完整题目与答案

【单选题】Which pair of English phonemes differs in the manner of articulation?______
A.
/d/ and /n/
B.
/k/ and /t/
C.
/s/ and /z/
D.
/t/ and /b/
查看完整题目与答案

【判断题】Air pollution originates from anthropogenic sources.
A.
正确
B.
错误
查看完整题目与答案

【单选题】Which pair of English phonemes differs in the place of articulation? _____
A.
/t/ and /d/
B.
/ʃ/ and /ʒ/
C.
/θ/ and /ð/
D.
/m/ and /n/
查看完整题目与答案

【判断题】The main air pollutants include : particulate matter, Ground-level ozone, Nitrogen dioxide, sulfur dioxide, carbon monoxide and lead.
A.
正确
B.
错误
查看完整题目与答案

【判断题】Natural sourcesof air pollution includesvolcanic eruptions, windblown dust, sea-salt spray and emissions of volatile organic compounds from plants.
A.
正确
B.
错误
查看完整题目与答案

【判断题】A secondaryair pollutant is a chemical added directly to the air that occurs in a harmful concentration.
A.
正确
B.
错误
查看完整题目与答案

【判断题】Air pollution is the leading environmental cause of death worldwide.
A.
正确
B.
错误
查看完整题目与答案

【判断题】Air pollution the fourth highest cause of death among all health risks.
A.
正确
B.
错误
查看完整题目与答案

【判断题】Air pollution could induce globalwarming.
A.
正确
B.
错误
查看完整题目与答案