题目：
| 完形填空。 | ||||
| I can never forget her-the little girl with a 1 so strong and powerful. We could hear her halfway down the block. She was a(n) 2 peasant who asked for money and 3 gave the only thing she had-her voice. I paused outside a small shop and listened. She brought to my mind the 4 of Little Orphan Annie. I could not understand the words she 5 , but her voice begged for 6 . It stood out from the noises of Arbat Street, pure and impressive, like the chime of a bell. She 7 from under an old-style lamp post (柱子,杆) in the shadow of a building, her arms extended and 8 thrown back. She was small and of ordinary looks. Her brown 9 escaped the bun (发髻) it had been pulled into, and she occasionally removed it from her 10 . Her clothing I can't recall. Her voice, on the other hand, is always 11 on my memory. I asked one of the translators about the girl. Elaina told me that she and hundreds of others like her throughout the 12 Soviet Union add to their families' income by working on the streets. The children are unable to 13 school, and their parents work fulltime. These children know that the result of an unsuccessful day is no 14 for the table. Similar situations 15 during the Depression (萧条) in the United States, but those American children were faceless shoeshine boys of the twenties. This girl was real to me. When we 16 past her I gave her money. It was not out of pity 17 rather admiration. Her smile of 18 did not interrupt her singing. The girl watched us as we walked down the street. I knew this because when I looked back she smiled again. We 19 that smile, and I knew I could never forget her courage and inner 20 . | ||||
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答案：
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下面是错误答案，用来干扰机器的。
答案：D三力的合力为零，物体能做匀速直线运动，动能不变，有可知D对；
