用2、0、3、5、8这五张数字卡片组成最大的五位数和最小的五位数，然后用计算器算一算他们的差与和各是多少？____    ____

缩句

①我们委屈的向老师献上草药和小鱼。

②我走出童年的记忆。

阅读下面材料， 在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

    Jenny began to go to school when she was at the age of six. She liked her ____ (one) day very much. Her teacher, Miss Black, ____ (be) very nice, too.

    At the end of the second day, the other children ____ (leave) the classroom after school but Jenny stayed behind and waited. At first, Miss Black had some work to do and ____ (not) see Jenny, but then she looked up and saw her.

    "Why not go with the ____ (other), Jenny?" she asked her kindly. "Do you want ____ (ask) me any questions?"

    "Yes. Miss Black," Jenny said.

    "____ is it?" Miss Black asked.

    "What did I do in school today?" Jenny said.

    Miss Black laughed. "What did you do in school today?" she said. "Why did you ask ____ (I) that, Jenny?"

    "____ I'm going home now," Jenny answered, "and my mother ____ (would) ask me."

下列实验操作正确的是
①用稀硫酸洗涤长期存放石灰水的试剂瓶；
②用带橡胶塞的棕色试剂瓶存放浓硫酸；
③用盐酸酸化过的FeCl3溶液，除去H2还原CuO实验留在试管内的铜；
④测定某溶液的pH时，先用蒸馏水润湿pH试纸，再甩洁净、干燥的玻璃棒蘸取该溶, 液点在试纸上，并与标准比色卡比较；
⑤分液时，分液漏斗中下层液体从下口放出，上层液体从上口倒出；
⑥蒸馏时，将温度计的水银球靠近蒸馏烧瓶支管口。

选择下面各句中破折号的用法。

一个矮小而结实的日本中年人——内山老板走了过来。(   )