某学校楼阶梯教室,第一排有m个座位,后面每一排都比前面一排多4个座位,则第n排座位数是( )
A:n+4(m-1)
B:m+4(n-1)
C:n+4
D:m+4
创新没有捷径,先有“厚积”才能“薄发”。下列对这句话理解正确的是( )
—This photo makes me think of trip to the Great Wall last year.
—Yeah, we had a great time there.
阅读漫画,回答下列问题: