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问题 不定项选择题

在25℃时，浓度均为0.2 mol/L的NaHCO3和Na2CO3溶液中，下列判断正确的是[ ]

A．c(OH-)前者大于后者

B．均存在电离平衡和水解平衡

C．存在的粒子种类相同

D．溶液中阳离子浓度相同

答案

BC

阅读理解

All students need to have good study habits. When you have good study habits, you learn things quickly. You also remember them easily.

Do you like to study in the living room? This is not a good place because it is usually too noisy. You need to study in a quiet place, like your bedroom. A quiet place will help you only think about one thing, and you will learn better. Before you begin to study, do not forget to clean your desk. A good desk light is important, too. It’s good for your eyes if there is enough light.

根据短文内容，选择最佳的答案。

小题1:To learn things quickly, you should ____________.

A．have good study habits

B．study in the living room

C．study in the bedroom

D．study with a good desk小题2:Living room is not a good place to study because_________.

A．it is too small

B．it is too noisy

C．it is too big

D．it is very quiet小题3:You’ll learn things quickly if the desk is ___________

A．high

B．low

C．clean

D．hard小题4:__________ is important for students to study well.

A．A high desk

B．A noisy place

C．An expensive chair

D．Enough light小题5:The best title(题目) of the passage is ___________.

A．How to learn well

B．Study in a quiet place

C．Study with a good desk

D．Good study habits.
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单项选择题

2008年1月1日实施的《中华人民共和国城乡规划法》规定，地方各级人民政府以（）方式提供国有土地使用权的，建设单位在报送有关部门批准或者核准前，应当向城乡规划主管部门申请核发选址意见书。

A.转让

B.租借

C.承包

D.划拨
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