【简答题】计算: (1) (lg 1 4 -lg25)÷10 0 - 1 2 (2) 2(lg 2 ) 2 +lg 2 ?lg5 + (lg 2 ) 2 -2lg 2 +1 .
【简答题】计算: 1. lg4+lg25 2. lg80-lg8
【简答题】A.That the British were retreating to the Charles River. B.That the British would attack by sea. C.That the British were willing to sign a declaration of independence. D.That the British had won the f...
【判断题】流通企业可以通过建立物流分公司,提高物流效率,降低物流成本。
【简答题】要求在当前绘图区中绘制线段AB,已将点A(100,100)绘制完成,B点坐标为(100,250),若用“相对直角坐标”的输入方式应输入(__),如果用相对极角坐标输入方式应输入(__)。