Years ago I was hiking (徒步旅行) in the Himalayas and had made the mistake of changing a large amount of money into the local currency(货币). As I walked through the villages of the Annapurnas, it soon became 1that the people were too poor to 2 even the simplest 3. They had nothing. This meant that it was no use carrying the wad(捆) of 4 in my pack and I was a virtual(虚拟的) walking 5 compared to the local people. I grew to 6 the money and it was 7 to have it in my bag. This led to a remarkable experience that 8 me deeply and its 9 has never left me.

    On this particular day I was left behind by my fellow hikers and found myself in a valley. As I made myself down, I noticed a young girl of around 13 10 some sheep. Like so many of the children of the amazing Nepalese people, she was very beautiful. I couldn't 11 looking at her and she looked at me. As I approached her she suddenly rushed 12 to me, and without a 13, handed me a flower. She 14 at me for a tiny moment and then she ran away. The spirit in this lovely child had responded to something she saw in me and her first 15 was to find something to 16 . Due to her 17 , there was nothing she had 18 a single flower. The 19 of my bag was never heavier than at this moment and I had just received one of the most valuable 20 I have ever had in my life.

下列有关物质性质的应用正确的是（　　）

填一填。

4时=____分       3分=____秒      1吨=____千克

2000克=____千克     40角=____元       5角=____分

3平方米=____平方分米         400平方厘米=____平方分米

已知函数$f\left(x\right)$在R上满足 $f\left(2-x\right)=2x^2-7x+6$，则曲线$y=f\left(x\right)$在$\left(1,f\left(1\right)\right)$ 处的切线方程是(     )