背向散射法是利用()来测量光纤的损耗。
A.菲涅尔反射
B.瑞利散射
C.拉曼散射
D.布里渊散射
参考答案:B
I went to the Window of the World in Shenzhen. It’s ____ great ______to see a lot of beautiful views in one day.
A.so, fun
B.such a , fun
C.such, fun
D.too, funny
保护妇女的合法权益是对()原则的重要补充。