【正确答案】 D

【答案解析】原文：American scientists say they have developed a way to grow wood material in a laboratory. The method could create different wood products indoors in a single process, greatly cutting the cost of production and reducing damage to the world’ s forests. Researchers from the Massachusetts Institute of Technology demonstrated a proof of concept by growing wood-like structures from cells taken from the leaves of a flowering plant. The results were recently reported in a study appearing in the Journal of Cleaner Production.题目问的是根据新闻报道该公司2021年的计划是什么。新闻开头提到，总部位于香港的一家机器人公司表示，它计划在2021年大规模生产数千台人形机器人。故答案为D。