题目

—Have you asked the police­man          ? —Yes. He told us to turn left onto Main Street. It’s on the right. A. if there is a bank near here     B. how can we get to the nearest bank C. where can we find a bank      D. when we can go to the nearest bank 答案：A5．计算：（$\sqrt{8}$+2$\sqrt{3}$）（$\sqrt{12}$-2$\sqrt{2}$）=4．