有机骨架材料中气体吸附分离及材料改性设计的分子模拟研究

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Strong people go for help. Ask for assistance. Gnashing your teeth in the dark will not get you extra brownie points. It is a sign of strength to ask for assistance and people will respect you for it.
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Ask yourself: If a relationship or job makes you unhappy, do you choose to stay or leave? Next