题目

Thanksgiving Day was near. The first grade teacher gave her class some fun homework---to draw a picture of something for which they were thankful． Most of the class drew a turkey or other traditional things. But Douglas drew a different kind of picture. He drew a hand. Just an empty hand． Douglas was a different boy. He was poor and unhappy. As other children played, Douglas was likely to stand close by the teacher's side． His classmates were surprised at his picture. One child guessed it was the hand of a farmer, because farmers raise turkeys. Others guessed it was the hand of God, for 2015年12月23日，受雾霾天气影响，山东省多地市重污染天气Ⅱ级（橙色）应急响应升级为Ⅰ级（红色），中小学临时停课．下列做法对减轻雾霾有效的是（　　）①节约用水   ②大量燃放烟花爆竹   ③绿色出行   ④尽量少吃路边烧烤A. ①② B. ②③ C. ③④ D. ①④