下列说法正确的是

一个滑轮起重装置如图所示，滑轮的半径是10cm，当滑轮的一条半径OA绕轴心O按逆时针方向旋转的角度为120°时，重物上升____ cm（结果保留π）．

豆浆已成为众多家庭的早餐饮品，以下是豆浆中一些营养成分的平均质量分数。请根据下表回答：

成分	水	蛋白质	脂肪	糖类	钙	磷	铁	维生素A
质量分数/%	96.0	1.8	0.7	1.1	0.01	0.03	0.0005	0.015

根据句意及所给图片提示，写出句中所缺短语。

⑴     ⑵     ⑶  

完形填空
   It was on such a cold morning, near Oxford Maryland.    1   I looked out of the window, I found the night’s snow had painted a completely white world. Suddenly a large Canada goose came into my sight. It was standing very still with   2 wings folded to its sides. Its feet were frozen to the ice of the river and it couldn’t move.
   Then from the dark sky, I saw a line of swans moving freely. When they noticed the goose, they landed on the ice as   3   as possible. As the 4  came close to the goose, I was          
    5  that those great swan bills might hurt the goose’s body.
    Amazingly instead, those bills began to  6 on the ice. It went on for  7  an hour. In the end, the goose was free. The swans rose again, and circled in the sky, waiting to see the   8  of their work.
   However, the goose was still standing on the ice and   9 fly because of some ice held in its feathers. Then four of the swans watching in the sky came down to help it move the     10  
away. Luckily, the goose was    11  and could move again.
  When the goose spread its wings to their fullest, the four swans flew up into the sky and joined the circling group. They went on their journey to their secret land. Behind them, the goose was flying with joy. It  12 them and joined the last end of the line.
    I    13them until they disappeared over the tips of the farthest trees. Only then did I realize that tears were running  14 my face. The swans were so warm-hearted that they        15the goose.
    This is a true story. I always think of it in the bad moments, and tell myself, “If so for birds, why not for man?”