1990年11月，联合国安理会通过第678号决议，“授权同科威特政府合作的会员国，除非伊拉克在1991年1月15日或之前……完全执行上述各决议（指无条件撤军），否则可以使用一切必要手段……恢复该地区的国际和平与安全”。依此决议，多国部队对伊拉克采取了军事行动。中国政府对该决议投了弃权票。对此分析正确的是（    ）

Dear Mum,

    How are you?

    I'm very well in Shanghai. It's a beautiful city. I like the place. And I made a new friend. Her name is Huanhuan. She's got long and black hair. She's got big eyes. She is tall and thin. She's clever. But she is a bit shy. She likes English best. And she works hard. She often helps me. I miss you. I will be back next month.

Love,

Belinda

如图，在平面直角坐标系中，直线AB与x轴交于点A（﹣2，0），与x轴夹角为30°，将△ABO沿直线AB翻折，点O的对应点C恰好落在双曲线y=$\frac{k}{x}$（k≠0）上，则k的值为（　　）