单项选择题


<上一题 目录 下一题>
热门 试题

单项选择题
Which comes nextA, 1A, 111A, 311A,
A． 1312A
B．13211A
C．1231A
D．11231A
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
相关试题