A:O原子数目减少8个
B:C原子减少1 2个
C:氨基和羧基分别增加3个
D:肽键数目减少7个
You'll be _______ in the movie if you know it's based on a real teacher in our school.
阅读如图的一幅漫画,回答下面的问题。
选择句子的翻译。
①请问、去超市怎么走?____ A. Nice to meet you.
②一直向前走,然后向右转____ B. Go straight on, then turn right.
③小明在学校附近。____ C.Excuse me. Where is the supermarket?
④见到你真高兴。____ D. Xiaoming is near the school.
某商品销售量y(件)与销售价格x(元/件)负相关,则其回归方程可能是( )