在3ds max中除对一物体进行多次布尔运算外，要影响结果还可以通过（）.
A、修改参数
B、任何修改都可
C、修改大小
D、都不对
参考答案：A
— Got your driving license?
— No. I ________ too busy to have enough practice, so I didn't take the driving test last week.[ ]
A. was
B. am
C. have been
D. had been
唐代天文学家中最有成就的是僧一行，其原名为什么？
