试题与答案

主要针对控件的外观或窗体的显示格式而设置的是( )属性。A.格式 B.数据 C.状

题型:单项选择题

题目:

主要针对控件的外观或窗体的显示格式而设置的是( )属性。

A.格式

B.数据

C.状态栏文字

D.有效性规则

答案:

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题型:阅读理解

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第三部分:阅读理解(共20小题;每小题2分,满分40分)

阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

第一节(共15小题;每小题2分,满分30分)

At Harton College—an English boarding school for boys —there are many rules. 15-year-old Bob Sanders often breaks them.

The boys can go into the town in the afternoon after class. But they must return to the school at six o’clock. One afternoon Bob walked to the town. He looked at the shops and then went to the cinema. After the film, he looked at his watch. It was after eight o’clock. He was a little worried. He walked back to Harton College as fast as possible.

When he arrived, he ran quickly to the main entrance. It was locked. He went round the school building to another door, which was locked too. He looked up at the window of his dormitory on the third floor. The window was open. But it was quite dark, and he could not climb up the wall easily. Then he saw another open window on the ground floor. It was the window of the headmaster’s study.

He looked into the room—no one was there. Bob quickly climbed on to the window sill(窗台)and jumped into the room. Just then he heard a noise. Then someone turned on a light in the corridor(走廊). Bob looked around and then hid under the sofa. One minute later, Mr. Mannering, the headmaster, came in. He turned on the light on his desk, and sat down on the sofa. Then he opened a book and began to read.

Bob lay under the sofa as quietly as possible. He couldn’t move. The floor was cold and uncomfortable. He looked at the headmaster’s shoes and socks for an hour.

“Why doesn’t he get up and go to bed ?” Bob thought.

Mr. Mannering read his book for another hour. Finally, the headmaster closed his book and stood up. He put the book on a shelf and walked towards the door.

“Thanks heavens, he didn’t find me under the sofa,” thought Bo .

Then Mr. Mannering stopped and spoke towards the sofa. “ Would you turn off the light when you leave ?” He said, and left the study.

56. Bob returned to the school more than two hours late because_______.

A. he enjoyed himself too much    B. he did not catch the bus

C. he hated the rules             D. he ran into an old friend

57. Bob didn’t go to his dormitory because _______.

A. the gate was locked           B. the window was shut

C. it was quite dark             D. the wall was too high for him to climb up

58. It’s obvious that _______.

A. the headmaster didn’t notice Bob

B. the headmaster thought a thief had broken into his study

C. the headmaster found Bob under the sofa 

D. there was a third man in the study

59. From the passage we know that the headmaster is _______.

A. kind   B. strict   C. gentle    D. humorous

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题型:填空题

科学家预言,燃料电池是21 世纪获得电能的重要途径。一种甲烷燃料电池是采用铂作电极催化剂,电池中的质子交换膜只允许质子和水分子通过。其工作原理的示意图如下

请回答下列问题:

(1)Pt(a)电极是电池的_____极,其电极反应式为_________________。Pt(b)电极发生____(填“氧化”或“还原”)反应,其电极反应式为_______________。

(2)如果该电池工作时电路中通过2mol电子,则消耗CH4的物质的量为_______mol。

(3)25℃、101 kPa时,若CH4在氧气中直接燃烧生成1 mol 水蒸气放热401kJ,写出该反应的热化学方程式:________________;若1 g水蒸气转化成液态水放热2. 445 kJ,则CH4的燃烧热为_________kJ/mol。

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