问题
选择题
给出20个数:89,91,94,88,93,91,89,87,92,86,90,92,88,90,91,86,89,92,95,88.则它们的和是[ ]
A.1789
B.1799
C.1879
D.1801
答案
答案:D
给出20个数:89,91,94,88,93,91,89,87,92,86,90,92,88,90,91,86,89,92,95,88.则它们的和是[ ]
A.1789
B.1799
C.1879
D.1801
答案:D