根据句意、首字母提示或汉语写出合适的单词。

1. —What’s your home a_____________?

— It’s No.8 Jiaotong Road, Jinsha Town.

2. It’s very important for us to be careful when we are walking a__________  the road.

3. Our government has done something to r       “white pollution”.

4. My brother often failed in Chinese exams in the            (过去).

5. Visiting Shanghai World Expo, we can learn a lot of ______________(知识) about other countries.

6. Today more and more people realize the ______________ (重要性) of health.

7. In the past few years, the city has developed at very high ___________(速度).

CT矩阵与像素大小的关系()

A．扫描野÷矩阵=像素大小 

B．重建显示野直径÷矩阵＝像素大小 

C．设备最小空间分辨率×矩阵＝像素大小 

D．设备最小空间分辨率÷矩阵＝像素大小 

E．以上都不对