选择占格完全相同的一项是_____。

y i w u ü c ch b j g

⑴Mom and Dad are the most important people in your life. They have been looking after you since you were born. ⑵你应该一直爱他们。You should also get on well with them. But some children don't know how to do this. Here are some ways to help you. Spend more time with your parents. ⑶Don't spend too much time playing computer games or watching TV. Ask your parents to play with you. ⑷和他们交谈或者散步。 Be kind to your parents. You can make them happy with a smile when you come home. You can send your mother a card on Mother's Day or tell your father a joke on his birthday. ⑸You can also clean your room by yourself. Work hard. If you do your best in your studies, your parents will be proud of you.

测定1mol气体体积时，造成误差的原因有很多．下列原因中，肯定不会造成误差的是（　　）

在如图中B、C、D都是相关反应中的主要产物（部分反应条件、试剂被省略），

属于取代反应的有　 ____　，

属于消去反应的有　 ____　；．

属于加成反应的有　 ____　； （填序号）

​