赚现金
计算:.
计算:
计算:sin30°++(1﹣π)0+.
计算:20110﹣3tan30°+(﹣)﹣2﹣|﹣2|
计算(1)(2)(a+1)2﹣a(a﹣1)
(11·十堰)计算:-2-1+︱-1︱.
(11·丹东)(本题8分)计算:
计算:(1) (2)
(8分)计算:
(本小题满分7分)计算:
试题篮