Which of the following is NOT mentioned as an important factor in improving memory?
[A] Physical exercise.
[B] Food supply.
[C] Water supply.
[D] Enough sleep.
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甲有个人财产30万元,死后未立遗嘱,甲的妻子乙和甲的哥哥丙仍在世。甲还有一女儿,15年前与丁结婚后不久即去世,未留有子女,丁在其妻子死后对甲乙仍然尽了主要赡养义务,问该遗产该如何继承?()
The author volunteered his mother to be a cookie volunteer because __________.
[A] she wished to do something for her son
[B] she was an expert in cooking various dishes
[C] he wanted to show off in front of his classmates
[D] he wanted to leave a good impression on Miss Pace
在2010年的两会政府报告中提到,改善民生是经济发展的根本目的。只有着力保障和改善民生,经济发展才有持久的动力,社会进步才有牢固的基础,国家才能长治久安。() 是保障和改善民生的头等大事。