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  3. Living things can also do many other things that non-living things cannot do

Living things can also do many other things that non-living things cannot do

游客2025-03-20  29
问题     Living things can also do many other things that non-living things cannot do. Living things take【C1】______ food, and grow by converting the food into their own【C2】______ . Living things can move. They can get energy they need for movement by breaking down food during the【C3】______ of respiration. They excrete the waste products of respiration. Living things respond【C4】______ stimuli such as heat, light, and touch. A bird and a tree are【C5】______ because they do all these things. Living things are made up of tiny units called cells. Some simple plants and animals, and all bacteria,【C6】______ of only one cell. Many biologists consider bacteria as plants, but some【C7】______ them as neither plants nor animals. The vast majority of living things are made up of countless【C8】______ of cells. All the living parts of cells are made up of large molecules【C9】______ proteins. There are thousands of【C10】______ of proteins in each cell. [br] 【C10】
选项 A、group
B、sort
C、kind
D、kinds
答案 D
解析 A项group没有"种类"的意思。sort或kind均可表示"一种"或"一类"，在这篇短文中，依语法关系应用其复数形式kinds。
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