“冬青树上挂凌霄,岑晏花凋树不凋。凡物各自有根本,种禾终不生豆苗。”这表明() A.

题型:单项选择题

问题:

“冬青树上挂凌霄,岑晏花凋树不凋。凡物各自有根本,种禾终不生豆苗。”这表明()

A.自然界的存在和发展是不可改变的

B.事物发展有其自身的客观规律

C.事物是变化发展的

D.物质是运动的主体,运动是物质的根本属性和存在方式

考点:高中政治思想品德唯物辨证法的发展观唯物辨证法的发展观题库
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阅读理解。

     I went to Ottawa last December. It was my first time to Canada. Because I couldn't go to many places in

Ottawa in two days, I learnt a little about the beautiful city. This summer, I went to the city again. A friend

once told me Ottawa was the most beautiful in May. But I arrived in late June. Like I did, travelers from

different countries enjoy having their holidays there. I lived in a small but nice hotel. There were a lot of stores

and restaurants near it.

     People in Ottawa are very friendly. One day, I got lost after I went out of a bank. It was hard for me,

because my English was poor. Then I saw two boys passing by. I asked them for help. They told me the way

to my hotel. Finally, one of them went back with me. He spoke French well! Two weeks later, I left Ottawa.

     I love Ottawa. I hope to visit it again some day.

1. How long did the writer stay in Ottawa last year? [ ]

A. For two days.

B. For two weeks.

C. For two months.

D. We don't know.

2. The writer thought that Ottawa was a good place to _____. [ ]

A. find good jobs

B. go shopping

C. visit friends

D. go for a holiday

3. Where did the writer go before he got lost? [ ]

A. To a restaurant.

B. To a post office.

C. To a bank.

D. To a hospital.

4. When did the writer leave Ottawa this year? [ ]

A. In May.

B. In July.

C. In June.

D. In August.

5. From the passage, we can know ______. [ ]

A. the writer doesn't know Ottawa well

B. the writer could speak a lot of English

C. the two boys took the writer to the hotel

D. the policeman took the writer to go for a holiday

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对高能的X射线,通常采用辐射质指数来描述射线质,用水模体内不同深度的值来表示定义为()

A.TAR20/TAR10或PDD10/PDD20

B.TPR20/TPR10或PDD10/PDD20

C.TPR10/TPR20或PDD20/PDD10

D.TPR20/TPR10或PDD20/PDD10

E.TPR20/TMR10或PDD10/PDD20

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在中国境内拥有并且使用车船的外商投资企业和外国企业,均为车船使用税的纳税人。( )

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水利水电工程施工质量检验的见证取样资料应由()制备。

A.施工单位

B.监理单位

C.项目法人

D.质量监督机构

题型:单项选择题

如图所示,物体A和B所受重力都是100N,滑轮和绳子重力不计,当分别用力匀速提升物体A和B时,FA为______N,FB为______N.

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