锯路(料路)的路度越宽，则锯割时越省力，但速度也越慢。( )

患者男性，37岁。主因浮肿、尿蛋白1年，血肌酐升高半年入院。患者1年前无诱因出现眼睑、双下肢浮肿，伴尿泡沫多，左腰阵发性酸痛，尿常规：蛋白（3+），潜血（3+），在当地医院化验检查24小时尿蛋白0.2克，半年前发现血尿素氮和血肌酐升高（具体数值不详），门诊查血压：160／110mmHg，呈轻度贫血貌，双下肢指凹性浮肿。

患者在停用环磷酰胺冲击后加用二线免疫抑制剂霉酚酸酯。新一代免疫抑制剂骁悉（霉酚酸酯）的作用机制是（）

A.是选择性、非竞争性抑制淋巴细胞

B.非特异性抗炎

C.可抑制胞嘧啶核苷酸的经典合成

D.选择性抑制T淋巴细胞

E.可抑制鸟嘌呤核苷酸的经典合成

F.直接阻断B细胞和T细胞增殖

一般经过机油粗滤器过滤的机油经管路回到（），经过机油细滤器过滤的机油经管路被送到各个摩擦面。

文化不是神的恩赐，也不是动物的活动，纯粹“自然”的东西不能称为文化。这表明（）

A.文化是人类社会特有的现象

B.文化是一种社会物质力量

C.文化不需要物质载体

D.文化不能转化为物质力量

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.

The underlined word rest in the last paragraph refers to ().

A. the rest time

B. the rest people

C. the rest of the country

D. the rest of the parks and of the sea

构造抬升可以形成异常低压，地层剥蚀可以形成异常高压。（）