A:75°
B:45°
C:30°
D:15°
根据句意及汉语提示完成单词
①There's a____(电脑)on the teacher's desk.
② What can you see in the____(图片)?
③ Is there a____(电视)in Lucy's room?
④There isn't any ____(家具)in the old house.
⑤The old man is ____(九十)years old.
秦朝施政主要依据的学说是( )