发泡剂加入浓度是指()水需加入的发泡剂升数。
A.1t
B.lm
C.lL
D.lmg
参考答案:B
(74) is NOT served by building a prototype.
A.It takes the place of the final system
B.It is used as the foundation of the larger projects
C.It assists in estimating the cost of the project
D.It assists in gathering software requirements
假定用散列函数H1=k mod 13计算散列地址,当发生冲突时,用散列函数H2=k mod 11+1来计算下一个探测地址的地址增量。设散列表的地址空间为0~12,在地址2、3、8中,散列表相应的内容为80,85,34。下一个被插入的关键码是42,其插入的位置是 【4】 。