第五套人民币5元纸币正面左侧及背面左下角的面额数字“5”字样，采用凹印接线印刷，紫色和红色、紫色和蓝色分别对接完整。
参考答案：对
It was along the Mississippi River _____ Mark Twain spent much of his childhood. [ ]
A. how
B. which
C. that
D. where
