如图是由6个相同的小正方体搭成的几何体，那么这个几何体的俯视图是（     ）

     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.

依次填入下列各句横线处的成语，最恰当的一组是（    ）

①近年，葡萄酒酒庄如雨后春笋般兴起，但是今年这些酒庄或者关门或者大打特价牌，这标志着酒庄销售已经进入理性期，接下来更需要从业人员________。

②为了保存这些书籍，使之流传后世，明代著名藏书家范钦________建造了一座藏书楼，起名“天一阁”，取“天一生水，地六成之”之说。

③《历史转折中的邓小平》再现了邓小平同志带领党和人民________开创中国特色社会主义的那段历史，给人民深刻的思想启示和全景式的艺术享受。

下列关于动物激素的叙述，错误的是（    ）

碳酸钠可用于制玻璃，其俗称是（   ）