下列软体动物中，都能分泌珍珠质，形成珍珠的是（    ）

党的十六大报告提出了“三位一体”(经济建设、政治建设、文化建设),十七大提出了“四位一体”(经济建设、政治建设、文化建设和社会建设),十八大进一步拓展到“五位一体”(经济建设、政治建设、文化建设、社会建设、生态文明建设)。“这个总体布局意味着中国进入21世纪后,从局部现代化到全面现代化,从不大协调的现代化到全面协调的现代化。”上述材料表明（  ）

①认识的发展是有限性和无限性的统一 　②真理是理论和实践的具体的历史的统一　③真理是绝对性和相对性的统一 　④真理的发展过程是实践—认识—实践的无限循环过程

317年，____重建晋朝，都城定在____ ，史称东晋。

    Mr. Jones had a quarrel with Mrs. Jones the other day. So they were very angry with each other. For several days they did not s____to each other at all. One evening Mr. Jones was very t____ when he came back from work, so he went to bed at once after d____. Of course he did not say a____to Mrs. Jones before he went upstairs. Mrs. Jones washed the dishes and then did some sewing. When she went up to bed much l____ than her husband, she found a p____ of paper on the small table near her bed. On it were the words, 'Mother—Wake me up at 7 a.m.—Father.'

    When Mr. Jones w____ up the next m____, it was nearly 8 a. m. —and on the small table near his bed he saw a____ piece of paper. He took it and r____these words: 'Father—Wake up. It's 7 a.m. —Mother.'

 ____  ____  ____  ____