My name is Mary Green. I live in a new house with my parents. There is a beautiful and a small room for me. I like it very much.

Now let me tell you something about my new house. My new house is on a busy street. There is a big, new and clean park across from my house. I can see the flowers in it from my room. We often take a walk in the park after dinner every evening. There is a big supermarket near my house. It is between a hospital and a cinema. We can buy fruits, vegetables and food in the supermarket. They are good but cheap. My school is near my house. So I always go to school on foot. I like my new house. Do you like it?

小题1:How is the park?

A．old

B．big

C．dirty

D．small小题2:Where is the cinema?

A．It is across from my house.

B．It's between a bank and a supermarket.

C．It's beside a park.

D．It's beside a supermarket.小题3:We can't buy _______in the shopping mall.

A．fruits

B．vegetables

C．food

D．flowers小题4:Which of the following is TRUE?

A．I walk to school from Monday to Friday.

B．There is no cinema near my house.

C．The street is very quiet.

D．My first name is Green.

把2g甲醛气体溶于6g冰醋酸中，再加入4g甲酸甲酯和9g葡萄糖后得到一混合物，则此混合物中碳元素的质量分数为( )。

A．20%
B．35%
C．40%
D．55%