问题
选择题
下列去括号正确的是[ ]
A．a+（﹣2b+c）=a+2b+c
B．a﹣（﹣2b+c）=a+2b﹣c
C．a﹣2（﹣2b+c）=a+4b+2c
D．a﹣2（﹣2b+c）=a+4b﹣c
答案
答案：B
搜题请搜索小程序“爱下问搜题”
下列去括号正确的是[ ]
A．a+（﹣2b+c）=a+2b+c
B．a﹣（﹣2b+c）=a+2b﹣c
C．a﹣2（﹣2b+c）=a+4b+2c
D．a﹣2（﹣2b+c）=a+4b﹣c
答案：B
| 完形填空。 | ||||
| My mother seemed to be able to make dolls (洋娃娃) out of anything. She made some dolls for me and my two elder sisters. I 1 playing with them, but still, secretly, I hoped for a store-bought 2 like the one our rich cousin had. Her doll 3 open and close its blue glass eyes and even say "Mamma". I 4 stopped admiring it and hoping to have one. However, my dream 5 came true when I was six. One day my father came back from his business trip with three 6 dolls! They were much smaller than our cousin's doll and their eyes were just painted ones, but I did not 7 such differences. They were 8 "store-bought" dolls. We each chose one and I named 9 Misako. Soon my sisters and I became 10 . Our"children" kept us 11 all day. We gave them a bath, 12 them, brushed their hair, took them out for a walk and put them to bed. Several months later, they got more like real children-their 13 and bodies became dirtier; their dresses got stained; their hair less smooth. But, by then, 14 interests seemed to have moved into 15 toys. Their dolls were abandoned (被抛弃) and in bad condition. One had 16 one of her arms, and 17 was one-legged."You can 18 them if you want," my sisters said to me. Thus, I had 19 dolls. They were more or less handicapped (残疾) and they often looked at me as if they needed me to 20 them. I enjoyed this feeling of being needed-being the only one in the world who could protect them with a lot of love. Indeed, they made the rest of my childhood days very happy. | ||||
|