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(500)某些化合物需要在常温下较快地干燥,可选择的干燥器是。
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某些化合物需要在常温下较快地干燥,可选择的干燥器是。
Some national political institutions existed in America before the War of Independence.
The Continental Congress was a temporary government without clearly defined powers.
In the Articles of Confederation, each state kept its sovereign dependence and control over all of its internal affairs.
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