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TJC3B-2AW-Z由DLL(德利)设计生产,立创商城现货销售。TJC3B-2AW-Z价格参考￥0.0474。DLL(德利) TJC3B-2AW-Z参数名称:插针结构:1x2P;间距:2.5mm;安装方式:弯插;总PIN数:2P;排数:1;每排PIN数:2;额定电流:3A;工作温度:-40℃~+105℃;颜色:白色。下载TJC3B-2AW
搜索智能精选题目 二次三项式\(4x^{2}-(k-3)x+9\)是完全平方式,则\(k\)的值是 ___ . 答案 \(15\)或\(-9\)