题目

如图是光在空气和玻璃两种物质中传播的路线，由图可知：玻璃在 AB的侧（填“左”或“右”），反射角的大小是。 答案：【1】右【2】60°— We plan to go out for a picnic next weekend. Would you like to come along?— ______. It’s my favourite.A．Enjoy yourselfB．It doesn’t matterC．You’re welcomeD．That would be very nice