财政收入划分以（）为主要形式。
A.税种
B.收费
C.利润上缴
D.发行债券
参考答案：A
—Sixteen-year-olds should not be allowed to drive.
—______. It's dangerous. [ ]
A. I don't think so
B. I don't know
C. I disagree
D. I agree
刚性路面板厚计算中应考虑的作用力因素主要有温度疲劳翘曲应力、（）
