立面图中,建筑物的室外、地坪线用( )。
A.粗实线B.中实线C.加粗线D.细实线
参考答案:C
I kept on _______to her until the train disappeared completely in the darkness.
A.waved
B.to wave
C.waving
D.and waved
我国汉代的音乐机构称为(),其最高领导人是李延年。