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【简答题】
书面表达。 根据提示写一封约60个单词的信。 You have just been to Daming Lake. Write a letter to your friend Li Lei. Tell him what you did, what you saw in it, what and bow you went there. Shengli street Jioan 25000 China July 4th, 2000 Dear Li Lei: I haven't heard from you for a long time, How are you? Please write me soon ______________________ ________________________________________________________________________________________ ________________________________________________________________________________________ Best wishes to you. Yours: Wang Lin
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皮皮学刷刷变学霸
举一反三
【多选题】下列哪种情况下选取CALPUFF模型进行进一步预测( )。
A.
风速小于等于0.5 m/s持续时间超过72 h
B.
项目处于大型水体3 km范围内并存在岸边黑烟
C.
某建设项目评价范围为80 km
D.
二次污染物评价因子为O3