要选择图像上同一颜色的选区，应使用工具箱上的（）工具
参考答案：魔棒
________the help of the teacher, the student who wasn't good at math________the difficult problem
quickly.
A. Under; worked out
B. With; worked on
C. Under solved
D. With; solved
国防法规所保护的国防利益，是关系国家安危的重大利益，因而对危害国防利益的犯罪行为实行比较（）的处罚。
A、轻微
B、严厉
C、一般
D、普通
