—Father's Day is coming. Could you tell me ________? —What about a watch? He'll like it.
A:what I should say to my father
B:what gift I should give my father
C:where I should meet my father
D:if I had a party for my father
对下列物质在氧气中燃烧的实验现象描述正确的是( )
关于原子结构和核反应的说法中正确的是( )