***支持人民代表大会依法履行职能，使党的主张通过法定程序上升为国家意志，体现党的基本执政方式是             ，其关键是      。（    ）

①取适量该粉末于试管，加足量的水溶解．过滤，得到沉淀和无色溶液．

②向沉淀中加入过量稀硝酸，沉淀部分溶解且无气泡产生．

则原粉末中一定有____；一定没有____；②中沉淀溶解的化学方程式为____；①中无色溶液中一定含有的溶质是____．

③为证明可能存在的物质是否一定存在，另取①中沉淀5.64g做如下实验：

请根据以上数据分析，该物质____存在．

A、一定      B、一定不      C、无法确定．

村____ (cūn  chūn)

趣____ (qù  qǜ )

壮____ (zhàng  zhuàng)

忘____ (wàn  wàng)

    This is Zhu Xiaogang's day. Every day he gets up at six in the morning from Monday to Friday．He has breakfast at home．Then he goes to school at 6:35．He reads English from 7:10 to 7:30．He has four classes in the morning．He has lunch at school at 12:00．In the afternoon, he has three classes .He starts his lesson at 2:30. In the evening he does his homework．There is too much homework. He goes to bed at 11:30 every day．He doesn' t get enough （足够的）sleep. He feels tired (累的).

信息归纳：

Zhu Xiaogang's Day.