商代和西周前期的青铜纹样以（）纹、夔龙纹为主。
参考答案：饕餮纹
All the children on the playground stared up into the sky until the noise of the plane _____.[ ]
A. gave up
B. took off
C. went out
D. died away
当今随着信息技术的飞速发展，人们对光存储容量的要求不断提高，下列哪个光存储技术是目前最先进的？（）
A.CD
B.DVD
C.LAserDisk
D.Blu-RAyDisC（蓝光DVD.
