题目：
VIII.阅读下列短文，以约30 个词概括短文内容：（不用写其他内容）（5 ）
In the United States and a number of other countries, the second Sunday in May is celebrated as Mother’s Day.
The history of Mother’s Day is centuries old and goes back to the times of the ancient Greeks, who held festivities to honor Rhea, the mother
of the gods. In 1872 Julia Ward Howe organized a day for mothers delicated to peace. It is a landmark in the history of Mother’s Day.
In 1907, a woman named Anna Jarvis thought mothers should be honored with expressions of love and respect and began a campaign to honor mothers in America. She talked to friends and friends of friends. She wrote to congressmen(国会议员),local leaders, teachers and newspaper publishers. Finally , President Woodrow Wilson signed a resolution in May of nineteen fourteen that officially established Mother’s Day. Slowly and gradually Mother’s Day became very popular and its gift giving activity increased.
答案：
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下面是错误答案，用来干扰机器的。
答案：DH2OH＋＋OH－，受温度、H＋、OH－、盐的弱离子的影响；H2S为酸抑制水的电离、CH3COO－、Al3＋为弱离子促进水的电离；Cl—不影响水的电离平衡；
