题目

（1）计算： +（﹣）×（2）解方程 答案：【答案】（1）5+3；（2）.【解析】（1）根据二次根式的运算法则计算；（2）先把方程组整理为，然后利用加减消元法解方程组．（1）原式＝，＝2+3+6﹣3＝5+3；（2）方程组整理为，①﹣②得2x＝﹣6，解得x＝﹣3，把x＝﹣3代入②得﹣6﹣3y＝1，解得y＝﹣，所以方程组的解为.Spring is coming and the grass is just beginning to _____. [     ]A. come along B. come up C. come withD. come through