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提问人:网友liuwenxuan 发布时间:2022-01-07
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Amedeo Avogadro (1776-1856), an Italian physicist, was the first scientist to__5_ the distinction between atoms and molecules.

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第1题
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第2题

Abstract Anticancer agents are critical for the cancer treatment, but side effects and the drug resistance associated with the currently used anticancer agents create an urgent need to explore novel drugs with low side effects and high efficacy. 1,2,3-Triazole is privileged building block in the discovery of new anticancer agents, and some of its derivatives have already been applied in clinics or under clinical trials for fighting against cancers. Hybrid molecules occupy an important position in cancer control, and hybridization of 1,2,3-triazole framework with other anticancer pharmacophores may provide valuable therapeutic intervention for the treatment of cancer, especially drug-resistant cancer. This review emphasizes the recent advances in 1,2,3-triazole-containing hybrids with anticancer potential, covering articles published between 2015 and 2019, and the structure-activity relationships, together with mechanisms of action are also discussed.

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第3题

Study the prefixes below and choose a proper word from the italicized words to complete each of the sentences. carb(o)- means "carbon", e.g. carbamide,carbonation de- means "to remove" something", e.g. deforest, delocalized, debug hydro-means "water or hydrogen", e.g. hydrocarbon,hydrokineitcs, hydrogenize poly- means "many", e.g. polynuclear, polythylene, polyolefin The influence of _________ glycol(乙二醇) on the aluminium hydroxide product in the process of ion-exchange membrance electrolysis was studied.

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第4题
According to a system adopted at the Geneva Convention, fatty acids are named in accord with the parent ___________.
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第5题
The unsaturated fatty acids were separated by the method of _________ package.
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第6题
It is generally accepted that the _________ electrons can exist only in the state that they have specific energy levels.
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第7题
Read the list of common organic chemicals below and try to put them in the right categories. Write its number in the right place. shampoo gasoline perfume drug paint plastic paper fertilizer wood coal cleaning solvent vitamin soap natural gas moth ball insect repellent nail polish remover Category 1 insectifuge _____________________.
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第8题
Forecasting of concrete ___________ depth is an important part of the structural durability assessment.
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第9题
Category 2 fuel _____________________
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第10题
Category 3 home maintenance _____________________
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