As long as I can remember, ___________I called, his wife would answer the phone.
移家别湖上亭
戎昱
好是春风湖上亭,柳条藤蔓系离情。
黄莺久住浑相识,欲别频啼四五声。
把下列各数填入表示它所在的集合里.
﹣2,7,﹣1.732,0,3.14,﹣(+5),﹣ 23 ,﹣(﹣3),2007
(Ⅰ)当a=1时,求曲线y=f(x)在点A(1,f(1))处的切线方程;
(Ⅱ)讨论函数y=f(x)的单调性.