城市规划是指为了确定城市规模和发展方向，以实现城市经济和社会

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问题单项选择题

城市规划是指为了确定城市规模和发展方向，以实现城市经济和社会发展为目标，合理利用城市( )，协调城市空间布局和各项建设的综合部署及具体安排。

A．特产

B．气候

C．第三产业

D．土地

答案

参考答案：D

阅读理解

阅读下面短文判断句子对(√)错(×)。

Do you like snow? I think you will say " Yes ". In winter, the weather is very cold. Many children like to

play with snow. Some of them make snowmen. They're very happy. Where does the snow come from? It

comes from little water drops. When the temperature falls below (在……以下) 0℃, the little water drops

become snow. They're white and clean, like small flowers. They make the world more beautiful.

( ) 1. The weather is very hot in winter.

( ) 2. Many children like to play with snow.

( ) 3. We can't make snowmen when it snows.

( ) 4. The snow comes from litter water drops.

( ) 5. When the temperature falls below 0℃, it begins to snow.

单项选择题

某医生在进行科研工作时，根据资料性质，正确地计算统计指标并作了t检验。

进行t检验的条件之一是

A．正态分布资料

B．正偏态资料

C．负偏态资料

D．任意分布的资料

E．n比较大的资料