平面表示法给钢筋翻样和施工，增加了哪些难点提供了哪些便利？
参考答案：不易学习掌握，容易用电脑翻样计算。
China’s economic development has made ______ rapid progress in the past 10 years, and young people have made ______ great contribution to this progress.
A．a; a
B．the; /
C．/; a
D．/; /
子宫脱垂患者，宫颈及部分宫体脱出 * * 口，应属（）。
A.Ⅰ度轻
B.Ⅰ度重
C.Ⅱ度轻
D.Ⅱ度重
E.Ⅲ度重
