2016年G20峰会的主题是“构建创新、活动、联动、包容的世界经济”，其会标用20根形似光纤的线条描绘出一个桥形轮廓，同时辅以篆刻隶书印章。该会标的寓意有(     )

①经济全球化下，构建联动包容的世界经济

②世界政治格局多极化趋势下国际竞争激烈

③中国融入世界，彰显中国传统文化的内涵

④第三次科技革命以来信息时代的互联互通

若函数$f\left(x\right)=x^2-ax-b$的两个零点是2和3,则函数$g\left(x\right)=b{x}^2-ax-1$的零点是（  ）

先通读下面的短文，掌握其大意，然后在每小题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

    About ten years ago, both of my parents lost their jobs. Life was1 for me then. I 2at the gift shop in my university's museum in my spare time. One day 3 working in the shop, I saw an elderly couple come in with a little girl in a wheelchair.

    As I looked closer at this girl, I found that she had no arms or legs, just a head, neck and body. She was wearing a pretty white dress and a little red4. When they came closer to me, I 5 her a wink(眨眼). And the girl gave me the most beautiful 6that I had ever seen.

    All of a sudden, her handicap(残疾) was gone and all that I saw was a 7girl. I was deeply moved by her smile, and I8what life was all about. She brought me, a poor and unhappy college student, into her world full of smiles, 9and warmth.

    I'm a successful business person now. Whenever I am in low spirits and in10I always think of that little girl and the lesson about life that she taught me.