______ students in Class 4 took park in that spring outing.
A:48 all B:48 whole C:All the 48 D:The whole 48
students in Class 4 took park in that spring outing.
A:48 all B:48 whole C:All the 48 D:The whole 48
students in Class 4 took park in that spring outing.
A:48 all B:48 whole C:All the 48 D:The whole 48
抄写下面句子，力求规范美观。
大江东去，浪淘尽，千古风流人物。故垒西边，人道是，三国周郎赤壁。
某生物的体细胞含有24条染色体，在减数第一次分裂四分体时期，细胞内含有的染色单体、染色体和DNA分子数依次是
A: 24、48、48 B: 48、24、48 C: 48、24、24 D: 48、48、24
2021年全国安全生产知识竞赛总复习题
