影响黏结力的因素有（）
A.黏结面积
B.黏结剂的厚度
C.黏结面的粗糙度
D.黏结剂的稠度
E.以上都有
参考答案：E
______, I've never seen anyone who's as capable as Kate. [ ]
A. As long as I have travelled
B. Now that I have travelled so much
C. As I have travelled much
D. Much as I have travelled
古典加密技术中的替换密码技术有分为（）
A、单表替换技术
B、多表替换技术
C、对称加密技术
D、换位密码技术
