【单选题】【消耗次数：1】
通风是用自然或机械的方法向空间送入和排除空气的过程。通风后可使室内的污染物浓度达到有关的标准。
①
正确
②
错误
参考答案：
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相关题目
【单选题】
环保部门每天通过新闻媒体向社会发布以污染物浓度为标准确定空气质量的信息。这些污染物是( )。
①
二氧化硫、氮氧化物、二氧化碳
②
二氧化硫、氮氧化物、悬浮颗粒
③
三氧化硫、氮氧化物、悬浮颗粒
④
稀有气体、氮氧化物、悬浮颗粒
【单选题】
在自然通风的情况下，室内气温仍然到达（）摄氏度时，应采用人工通风的辅助设备，如电扇、空调、排风扇等，是室内外空气得以交换，弥补自然通风的不足。
①
25
②
30
③
20
④
15
随机题目
【单选题】
Little girls and elderly ladies in kimonos ___teenagers and women in western dress.
①
rubbed the shoulder with
②
rubbed shoulders with
③
rubbed shoulder with
④
rubbed the shoulders with
【单选题】
They would also like to _____ the atomic museum.
①
demolish
②
destroy
③
ruin
④
smash
【单选题】
The taxi driver _______ at me in the rear-view mirror when I got on the car.
①
smile
②
laughed
③
grinned
④
stared
【单选题】
But later my hair began to fall_______, and my belly turned to water.
①
over
②
through
③
out
④
away
【单选题】
The tall building of the martyred city flashed by as we lurched from side to side ______ the driver’s sharp twists of the wheel.
①
in response to
②
as response to
③
in response of
④
as response of
【单选题】
The doctor gave the old man a _____ examination and congratulated him on his speedy recovery.
①
cautious
②
cautiously
③
careful
④
carefully