关于癃闭的预防与调摄，正确的有（） A.锻炼身体，保持心情舒畅 B.清除诸如忍尿 C

二维超声检测颅内占位性病变，由易至难的排列顺序是（）。

A.枕叶-项叶-额叶-颞叶

B.颞叶-额叶-枕叶-顶叶

C.额叶-颞叶-枕叶-顶叶

D.颞叶-枕叶-顶叶-额叶

E.以上都正确

读世界人种的分布图，回答下面问题。

（1）白种人主要分布在________洲、_______洲的北部以及北美洲的中部、南美洲的东南部和大洋洲等地。

（2）黄种人主要分布在______洲的东部、_____洲的北部和_______洲等地。

（3）黑种人主要分布在______洲。

T℃时，N₂与H₂反应生成NH₃，其能量变化如图（I）所示．若保持其他条件不变，温度分别为T₁℃和T₂℃时，NH₃的体积分数与时间的关系如图（II）所示．则下列结论正确的是（　　）

A．该反应的热化学方程式：

1

2

N₂（g）+

3

2

H₂（g）=NH₃（g）；△H=（a+b）kJ•mol^-1

B．该反应的热化学方程式：N₂（g）+3H₂（g）=2NH₃（1）；△H=2（a-b-c）kJ•mol^-1

C．其他条件不变，升高温度，正、逆反应速率均增大，且H₂的转化率增大

D．T_l＞T₂，且正反应为放热反应．

下列哪项不是非酒精性脂肪肝的临床分型（）

A.单纯性脂肪肝

B.脂肪性肝炎

C.酒精性肝病

D.脂肪性肝纤维化，肝硬化

Many people who work in London prefer to live outside it, and to go in to their offices or schools every day by train, car or bus, even though this means they have to get up early in the morning and reach home late in the evening.

One advantage of living outside London is that houses are cheaper. Even a small flat in London without a garden costs quite a lot to rent. With the same money, one can get a little house in the country with a garden of one’s own.

Then, in the country one can rest from the noise and hurry of the town. Even though one has to get up earlier and spend more time in trains or buses, one can sleep better at night and during weekends and on summer evenings, one can enjoy the fresh, clean air of the country. If one likes gardens, one can spend one’s free time digging, planting, watering and doing the hundred and one other jobs which are needed in a garden. Then, when the flowers and vegetables come up, one has the reward of one who has shared the secret of Nature.

Some people, however, take no interest in country things: for them, happiness lies in the town, with its cinemas and theatres, beautiful shops and busy streets, dance-halls and restaurants. Such people would feel that their life was not worth living if they had to live it outside London. An occasional walk in one of the parks and a fortnight’s (two weeks) visit to the sea every summer is all the country they want: the rest they are quite prepared to leave to those who are glad to get away from London every night.

One can use the same money for () to buy a little house with a garden in the country.

A. getting a small flat with a garden

B. having a small flat with a garden

C. renting a small flat without a garden

D. buying a small flat without a garden