阅读下列短文,从每小题所给的A、B、C、D四个选项中选出一个最佳选项。

Dear Bill

    Thank you for your letter（信件). You tell me something about your family. Now I'll talk about my family.

    I have a happy family. We love each other. My grandparents are doctors. They work in Canada now. My parents are both teachers. They teach English at Luoyang International School. My sister and I are in Luoyang with them.

    I'm 13 years old. I'm a student in Grade Seven. I like my teacher and my friends in China . They often help me. I want to be a Chinese doctor when I grow up . Now I can speak Chinese. My sister, Jane, is only three years old. She is very cute . She has brown hair and blue eyes. We all love her.China is very beautiful. Welcome to China.

Yours

Frank

如图，小华在暑假里和父母一起到西安半坡博物馆参观。在博物馆中，小华不可能看到的展品是

读下图，回答下列各题。

福建省是我国四大林区之一，素有南方“绿色宝库”之称。实时监测全省森林覆盖变化快捷、高效的手段是（  ）

回答下列问题：