读亚洲人口分布图，完成下列问题。

The living room is clean and tidy, with a dining table already ______ for a meal to be cooked.

某科技创新小组制作了一个直接测量电阻阻值的仪器，器材有：滑动变阻器R′（150Ω 3A）、定值电阻R=100Ω、电压表（量程0﹣3V）、电源（电压6V）及开关和导线若干，设计电路如图，制作过程如下：

     I like taking a long walk in the nature park. I do that    1  . It really makes a great    2   to the whole day! I usually walk up this nice long road. It's so quiet and pleasant   3   there are so many green trees.
    This morning, I walked on that road as usual.  4I was walking back down the road, on my way back    5 the car, I met a man. I saw him   6 on the grass by the roadside. He was breathing(呼吸) really    7 . I asked if he was OK. He said he was   8  tired to walk anymore. I thought he needed some  9  . So I began to look for some clean water.    10 , there weren't any places to get water in 11  a nature park. I walked back to my car    12  to see if there was some. Because I sometimes bring bottled water and leave    13in my car. Thankfully, I found some today.
    Instead of (代替) drinking it myself, I drove back to the man and gave him my bottle of water. Then I gave him a   14   back to his car. He was so thankful! I could tell he was very happy and surprised that someone was    15   to come back for him and give him some water. And also, I was very happy that I could share my water with others.

定义运算：，将函数（）的图象向左平移个单位，所得图象对应的函数为偶函数，则的最小值是