《货币变局》一书中提到：“伴随英镑衰落的是美元的崛起，一个新的时代被开启了。或许

阅读理解。

     Jack is six years old. He has no sisters. But he has a brother. His brother's name is Mike. Jack likes eating apples, oranges and bananas. Sometimes he eats some of his brother's apples. And his brother hits (打)him for that. He doesn't like Mike. This September he is going to school.It's the ninth day at school. Jack and his classmates are having a new lesson.

     "Jack, how much is five minus three, please?"

     "It's…it's…"

     "Now, listen to me," says the teacher, "If your sister has five apples, and you have eaten three of them…"

     "But I have no sisters." Jack says.

     "Oh, sorry. But do you have any brothers?"

     "Yes."

     "Now, if your brother has five apples, and you have eaten three of them, tell me how…?"

     "He'll certainly give me a good beating" Jack says quickly.

1. How many brothers and sisters does Jack have?

A. One brother and one sister.

B. One brother and two sisters.

C. Only one brother.

D. No brothers and no sisters.

2. Why does Mike sometimes hit Jack? Because _______.

A. Jack often hits Mike.

B. Jack doesn't like eating fruit

C. Jack doesn't do his homework

D. Jack often eats some of Mike's of apples

3. Why can't Jack answer his teacher's question? Because _______.

A. he has no sisters

B. he has no brothers

C. he doesn't understand his teacher's question

D. he has no apples

4. If you have five apples, you have eaten three of them, how many apples remain (剩下) _______.

A. two

B. three

C. four

D. one

5.When does the story happen (发生)?_______.

A. In October.

B. On the ninth day at school.

C. In a new lesson.

D. At school.

根据下列仪器回答问题：

（1）B的仪器名称是：______．

（2）量取一定体积的液体，应选用的仪器是（填写字母序号）______．

（3）实验室制备并用排水集气法收集氧气，需用到的仪器有（填写字母序号）：______；装置连接好后，应先检查______；气体收集完毕，应进行的操作是______．

（4）写出实验室制二氧化碳的化学方程式：______．

对于邮递物品而言，自用合理数量是指( )。

A．对进出境邮递物品规定的征免税限值

B．进出境旅客本人自用，馈赠而非出售

C．进出境旅客旅行目的和居留时间所规定的正常数量

D．以上都是

行政决策的步骤排列正确的是（）。

①设计活动阶段

②抉择活动阶段

③情报活动阶段

④审查活动阶段

A.①③②④

B.②④①③

C.③①②④

D.④②③①

烟道气中的SO₂可以用消石灰处理而除去，为了除去一千克SO₂需要含0.10mol/dm₂Ca（OH）₂的溶液多少体积？提示：2Ca（OH）₂＋2SO₂＋O₂→2H₂O＋2CaSO₄SO₂相对分子量为64.1g