下列剧种中主要使用梆子腔的是()。
A.京剧
B.川剧
C.秦腔
D.越剧
参考答案:C
Straight away I went to buy the tickets, but there were _____ left for the next public holiday. [ ]
A. nothing
B. none
C. neither
D. no one
在胸骨左缘第2~4肋间可听到Ⅱ~Ⅳ级喷射性收缩期杂音的先天性心脏病是
A.室间隔缺损
B.房间隔缺损
C.动脉导管未闭
D.法洛四联症
E.肺动脉狭窄