中国的非物质文化遗产标志中心的造型为在古陶中出现的（）种纹饰？
A.干栏纹
B.鱼纹
C.水波纹
参考答案：B
_________ no doubt that a green campus plays an important role in the growth of students, both physically and mentally.
A．It is
B．There has
C．There is
D．It has
筛漏斗的最后为()
A．筛泡
B．钩突
C．上颌窦开口
D．额隐窝
E．额骨鼻突
