[A] monkey [B] cat [C] snail [D] rabbit [E] bird [F] fish [G] snake It’s a small animal that is often kept as a pet or for catching mice.
举一反三
- [A]onto[B]of[C]to[D]into[A/]onto/[B/]of/[C/]to/[D/]into
- 在HTML中表示为超链接的标签是（） 未知类型：{'options': ['[a][/]', '', '[c][/]', '[d][/]'], 'type': 102}
- HTML5的基本结构是（ ） 未知类型：{'options': ['[html][body][/][head][/][/]', '[html][head][/][body][/][/]', '[html][head][/][foot][/][/]', '[html][head][title][/][/][/]'], 'type': 102}
- a=array([[0,1,2,3], [4,5,6,7], [8,9,10,11], [12,13,14,15]]) b=array([[16,17,18,19], [20,21,22,23], [24,25,26,27], [28,29,30,31]]) 通过语句np.concatenate((a,b),axis=1)可以产生 array([[0,1,2,3,16,17,18,19], [4,5,6,7,20,21,22,23], [8,9,10,11,24,25,26,27], [12,13,14,15,28,29,30,31]])
- 设A={a，b，c}，A上二元关系R={[ a, a ] , [ a, b ],[ a, c ], [ c, c]} , 则s（R）= 。