其他 适中0.65 引用1 组卷24
People have been manipulating (操纵) organisms for human benefit since at least the dawn of agriculture, genetic editing is becoming widespread, and a few artificial organisms have been manually assembled in the past few years — copying the body forms of known animals. But this research, for the first time ever, “designs completely biological machines from the ground up, “the team writes in their new study.
What does the underlined sentence probably mean?
A.People never created these biological robots in history. |
B.These machines were copied from the very beginning. |
C.The research is completely carried out on the playground. |
D.Organisms have been developed since agriculture. |
2024高三上·全国·专题练习
类题推荐
Modern advances make life easier, but may also have unexpected drawbacks. Just taking escalators rather than stairs reduces the number of calories burned each day. By letting machines routinely do their work, people become less physically fit. And if supermarkets were to fail, people could starve without having their own gardens to provide food. ________________
A.That’s when they decided they had to learn to live without so many gadgets. |
B.It may be time to question how ”convenient“ these advances really are. |
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