请根据以上资料,选择以下栏目的正确选项:
“件数”栏:()。
A. 2000
B. 52
C. 13207
D. 1200
参考答案:B
细胞分裂过程中,染色体通过复制会形成数目和形态相同的两份。[ ]
Some scientists think that it may take ________ years to make robots look like people.[ ]
A. hundreds of
B. two hundreds of
C. two hundreds
D. two hundred of