定点开发的会计软件维护最主要(工作量最大)的是()维护。
A.正确性
B.环境适应性
C.功能扩充和完善性
D.其他方面的
参考答案:C
根据下列句子及所给单词的首字母,在答题纸上按题号写出各单词的完全形式(每空限填一词)。
小题1:Mary r a bike to school at 7:30 in the morning
小题2:He doesn’t like getting up early, I don’t, e_________.
小题3:The boy is old enough to get d .
小题4:Teachers find that one q________ of the students feel sleepy in class in spring.
小题5:He is good at music, so he wants to be a m__________ when he grows up.
小题6:John is good at w_________ stories for children.
小题7:There are about nine h___________ students in our school.
小题8:He brushes his t__________ before he goes to bed.
小题9:Jim, n___________ run in the hallways.
小题10:I’m sure your dream can come t________.
某男性患者,58岁,上颌牙列缺失4年,下颌牙列无缺损,曾两次以塑料为基托的上颌全口义齿修复,均使用不到一年而断裂,要求第三次修复。应选用哪种最佳材料制作基托()
A.甲基丙烯酸甲酯
B.金属丝增强基托
C.18-8铬镍不锈钢
D.铜基合金
E.硬质钴铬合金