A:乙炔中碳原子形成的是sp杂化轨道,因此易于发生加成反应和氧化反应
B:金属锂的摩尔质量小,因此锂电池具有比能量大的优点
C:苯环中含有大π键,因此易于发生加成反应,难于发生取代反应
D:相同温度、相同浓度的CH3COOH与NH3·H2O的电离能力相同,因此CH3COONH4溶液呈中性
________I admit the boy has a gift for music,I don't think he will make a good singer.
选出相对应的答语。
①Do you like summer? ____ A. They're kites.
②Can you play in the park in spring?____ B. I like rabbits.
③Would you like an ice cream?____ C. Yes, we can.
④What do you like?____ D. We can eat fruit.
⑤What can we do in autumn?____ E. Yes. I like summer.
⑥What are they?____ F. Yes, please.
下列关于光现象的说法正确的是( )