今年一季度,我市因治霾成效显著获得省治霾奖励。PM2.5是造成雾霾天气的元凶之一。下列行为不会增加大气中PM2.5的是( )
A:燃放烟花爆竹
B:为城市主干道洒水保洁
C:露天焚烧落叶
D:燃煤火力发电
如图,已知AB⊥BD、AC⊥CD,∠CAD=35°,则∠ADC=( )
天净沙·秋思
马致远
枯藤老树昏鸦,
小桥流水人家,
古道西风瘦马。
夕阳西下,
断肠人在天涯。
阅读下列材料,回答问题。
Take a look at the following ads! You may find some useful information you need here!
Piano lessons
Experienced musician from Australia. Good at teaching kids for 5 years!
For more information, please visit Larry's website: www.music.com.au
Lost cat
Medium size, with brown spots and white short hair. Answer you when you call it David. Many thanks for sending it back.
Call Susan at 7328059.
Guide wanted
Full time or part time.
Experience and a good knowledge of the city are necessary.
English is also a must.
Under 30 years old.
Call Mr. White at 5132683.
Apartment for sale
Three bedrooms, a kitchen and two bathrooms.
Beautiful sights out of the windows.
E-mail: sdgt@163.com.