A:∠ADC
B:∠ABD
C:∠BAC
D:∠BAD
问答句配对。
① Is it an apple? ____ A. I'm Miss Fang.
② You are Miss Fang. ____ B. You are Miss Fang.
③ Who are you? ____ C. Yes, I'm Miss Fang.
④ Who am I?____ D. No, it's an orange.
“人间四月芳菲尽,山寺桃花始盛开,”造成这一差异的环境因素是( )