用加减法解方程组$\left\{\begin{array}{c}x+y=5\\ x-y=-1\end{array}\right.$C中，消x用____法，消y用____法（　　）

阅读下面这首古诗，完成(1)(2)两小题
                                                                                                          山寺夜起
                                                                                                             江湜
                                                                                             月升岩石巅，下照一溪烟。
                                                                                             烟色如云白，流来野寺前。
                                                                                             开门惜夜景，矫首看霜天。
                                                                                             谁见无家客，山中独不眠。

分析上述数据，回答下列问题：

我国个体工商户的发展情况（见下表）表明，个体经济(    )

2011—2014年个体工商户发展情况