计算：（ $\sqrt{2012}$ ﹣1）⁰+（﹣ $\frac{1}{3}$ ）^﹣1﹣| $\sqrt{\text{2}}$ ﹣2|﹣ $\frac{1}{\sqrt{2}+1}$ ．

首字母填空
(1)His sister gets up at h ____ past six in the morning.
(2)Mr and Mrs Wang go to work by s____ every day.
(3)My home is about 5 k____ from our school.
(4)He always gets early ,he is n____  late for work.
(5)The classroom is too n____  , I can't hear you.

战国时期，标志着社会生产力显著提高的是（   ）

已知函数f（x）和g（x）的图象关于原点对称，且f（x）=x²+2x．

（Ⅰ）解关于x的不等式g（x）≥f（x）﹣|x﹣1|；

（Ⅱ）如果对∀x∈R，不等式g（x）+c≤f（x）﹣|x﹣1|恒成立，求实数c的取值范围．

用氢气吹肥皂泡并点燃，其实验现象能同时说明氢气（　　）