单选题 The numbers in a table are arranged in 10rows and 4 columns such that one number is placed at the intersection of each row and column．HOW many numbers are contained in the table?
A. 14 B. 40 C. 400
D. 104 E. 410

【正确答案】 B
【答案解析】一表格中的数字排成10行和4列以使每个数字被排在行和列的交点处，问表格中包含有多少个数字?
4行和10列中共有40个交点，所以表格中共包含40个数字。