题目

若，则正比例函数与反比例函数在同一平面直角坐标系中的大致图像可能是（    ） A．              B．             C．                  D． 答案：B 【解析】 由，得异号，若图象中得到的异号则成立，否则不成立． 【详解】 A. 由图象可知：a>0,b>0，故A错误； B. 由图象可知：a<0,b>0，故B正确； C. 由图象可知：a>0,b<0，但正比例函数图象未过原点，故C错误； D. 由图象可知：a<0，b<0，故D错误； 故选：B． 【点睛】 本题考查了根据已The story goes that some time ago, a man punished his 3-year-old daughter for wasting a roll of gold wrapping paper. Money was tight and he became infuriated(愤怒的) when the child tried to decorate a box to put under the Christmas tree. Nevertheless, the little girl brought the gift to her father the next morning and said, "This is for you, Daddy." The man was embarrassed by his earlier overreaction, but his anger flared again when he found out the box was empty. He yelled at her, stating, "Don't you know, when you give someone a present, there is supposed to be something inside? The little girl looked up at him with tears in her eyes and cried, "Oh, Daddy, it's not empty at all. I blew kisses into the box. They're all for you, Daddy." The father was crushed. He put his arms around his little girl, and he begged for her forgiveness. Only a short time later, an accident took the life of the child. It is also told that her father kept that gold box by his bed for many years and, whenever he was discouraged, he would take out an imaginary kiss and remember the love of the child who had put it there.In a very real sense, each one of us, as humans beings, have been given a gold container filled with unconditional love and kisses from our children, family members, friends, and God. There is simply no other possession, anyone could hold, more precious than this.1.The 3-year-old girl was punished by her father for ________.A.wasting goldB.wasting wrapping paperC.putting the box under the Christmas treeD.bringing the gift to her father2.What’s inside the box according to the little girl?A.nothingB.airC.kissesD.gold wrapping paper3.The father remembered the love of his daughter by ________.A.kissing the gold box.B.putting gold into the box.C.taking out an imaginary kiss from the box.D.keeping the little girl’s ash box by his bed.4.Choose the best title for the passage.A.The kisses in the box.B.A girl and his fatherC.A love storyD.The box under the Christmas tree.