She is a artist and writer. [ ]
A. well-known
B. well-know
C. well-done
D. well-knew
答案:A
延伸率是衡量钢筋塑性性能的重要指标,延伸率愈大,钢筋的塑性愈差。( )
CD-ROM规格的黄皮书由Philips、微软和()于1983年推出。
A.adobe
B.apple
C.sun
D.sony