=200×80÷2×5
=8000×5
=40000（元），
答：这块菜地每年共收入40000元
—Yes, I just bought _______ the other day.
一氧化氮是汽车尾气中的一种大气污染物，它是无色气体，难溶于水、密度比空气略大，在空气中能与氧气迅速反应生成红棕色的二氧化氮。在实验室中，收集一氧化氮时可选用的收集方法是
This Sunday is grandpa's birthday. The Smith family are going to celebrate it at home, so they will have a busy weekend.
Saturday
Morning
Dad-clean the car in the garden
Mum-clean the kitchen and bedrooms of their house
Amy-have dance lessons in the gym
Rose--work on science projects in the library
Afternoon
Mum and Dad-buy some food at the supermarket
Amy and Rose-choose gifts and cards for grandpa
Evening
Watch TV together
Sunday
Mum---make a big birthday cake
Amy and Rose-wrap grandpa's gifts
Amy-help Mum cook delicious food
Rose-help Dad decorate the sitting room
Amy and Rose-give gifts to grandpa
The whole family-have a party
根据表格所提供信息，从每小题所给的A、B、C三个选项中，选出一个最佳答案。
