1969年9月11日，苏联（） * * 从河内回国途中，在北京机场候机楼贵宾室里与周恩来总

任务型阅读

Tom and Mike were good friends. Sometimes they were kind to each other, sometimes they were not. But some of their classmates said they were like brothers. One day they went out for a walk together, At noon they were very hungry and they went into a restaurant to have lunch. The waiter came up to them and asked, “What can I do for you?” “Please bring us two apples first.” said Tom .

When the waiter put two apples on the table; Mike took the bigger one at once. Tom got angry. “You are impolite(没礼貌)”.Why didn’t you take the smaller one?” Tom said.  “But I was right,” said Mike with a smile. “If I let you take first, which one will you choose?” “Of course I will take the smaller one.” said Tom. “Yes,” Mike said, “If you take the smaller one, the bigger one will be mine. Don’t you think so? ”  “Oh.” Tom couldn’t answer.

小题1:Tom and Mike were ________.

小题2:They went into a restaurant to __________.

小题3:The waiter brought them _______ before the meal.

小题4:Mike took__________ apple.

小题5:At last ________ had the smaller apple.

（10分）已知KMnO₄和H₂C₂O₄在酸性溶液中发生反应：

  KMnO₄+ H₂C₂O₄+  H₂SO₄—  K₂SO₄+  MnSO₄+  CO₂↑+  H₂O（请配平）。

甲、乙两个实验小组欲探究影响化学反应速率的因素，设计实验方案如下：

(1)甲组：通过测定单位时间内生成CO₂气体体积的大小来比较化学反应速率的大小，实验装置如图所示。

实验时A溶液一次性放下，A，B的成分见下表：

序号	A溶液	B溶液
①	2mL 0.1 mol·L－1 H2C2O4溶液	4mL 0.01 mol·L－1 KMnO4溶液
②	2mL 0.2 mol·L－1 H2C2O4溶液	4mL 0.01 mol·L－1 KMnO4溶液
③	2mL 0.2 mol·L－1L H2C2O4溶液	4mL 0.01 mol·L－1 KMnO4溶液、少量催化剂

   该实验探究的是          对化学反应速率的影响。在反应停止之前，相同时间内针筒中所得CO₂的体积由大到小的顺序是                    (用实验序号填空)。

(2)乙组：通过测定KMnO₄溶液褪色所需时间的多少来比较化学反应速率的大小。取两支试管各加入2 0.1 H₂C₂O₄溶液，另取两支试管各加入40.1 KMnO₄溶液。将四支试管分成两组(各有一支盛有H₂C₂O₄溶液和KMnO₄溶液的试管)，一组放入冷水中，另一组放入热水中，经过一段时间后，分别混合并振荡，记录溶液褪色所需时间。该实验试图探究              对化学反应速率的影响,但该组同学始终没有看到溶液褪色，其原因是                                                       。

党课主要是对党员进行（）。

A.党的基本理论教育

B.党的路线方针政策教育

C.党的基本知识教育

D.党性党风党纪教育

E.部队条例条例教育

删除学生表的候选索引XUESH INDEX，该语句格式为：
ALTER TABLE 学生表______ TAG XUESH_INDEX

以下不是计算机病毒发作时的表现现象的是

A．平时运行正常的计算机突然经常性无缘无故的死机

B．打印和通讯发生异常

C．系统文件的时间、日期、大小发生变化

D．磁盘空间迅速减少

E．计算机机箱电源噪音变大