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If most winners __________ (捐献) a day's pay to the Hope Project, then it will be hopeful.
1年前
在分别含有银离子,镁离子,亚铁离子,铝离子,铁离子的五种溶液中,加入过量氨水,没有沉淀的是什么
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After John had been in London for three years, he and his wife had a lot to tell ________.
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If our government ______ attention to controlling food safety now, our health ______ in danger.
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人有优良的品质,又有许多劣根性杂糅在一起,好比一块顽铁得在火里烧,水里淬,一而再,再而三,又烧又淬,再加千锤百炼,才能把顽铁炼成可铸宝剑的钢材。
1年前