单项选择题

Which comes next A, 1A, 111A, 311A,

A． 1312A
B．13211A
C．1231A
D．11231A

<上一题目录下一题>

热门试题

单项选择题

A man has 29 socks in his drawer, 9 identical blue, 8 identical grey and 12 identical black. The lights have fused and he is completely in the dark. How many socks must he take out to make certain that he has a pair of each colour

A．21
B．14
C．23
D．24

单项选择题

相关试题