“减柱法”是( )朝代建筑的结构特点。
A.宋 B.辽 C.元 D.清
参考答案:C
解析: 元代建筑大胆取消室内斗棋,抽去若干柱子,称为“减柱法”。
—______ I come back before dinner?
—No, you ______. But you ______ be back later than 10: 30 p.m. [ ]
A. Need Amust; mustn 't
B. May; mustn't; can't
C. Can; can't; can't
D. Must; needn't; can't
根据目前我们所使用的光纤,光纤折射率(IOR)所设置的参数为()
A.1.266
B.1.366
C.1.466
D.1.566