搜题请搜索小程序“爱下问搜题”
问题 单项选择题

哪种管型在慢性肾功能衰竭患者尿中出现示预后不好( )

A．透明管型

B．细胞管型

C．脂肪管型

D．蜡样管型

答案

参考答案：D

解析：蜡样管型是因肾单位长期阻塞，少尿、无尿，因颗粒管型长期滞留在肾小管中而形成。所以本题选D。

单项选择题

It is quite reasonable to blame traffic jams, the cost of" gas and the great speed of modern life, but manners on the toad are becoming horrible. Eye,body knows that the nicest men would become fierce tigers behind the wheel. It is all right to have a tiger in a cage, but to have one in the driver’s seat is another matter.
Road politeness is not only good manners, but good sense too. It takes the most cool-headed drivers great patience to give up the desire to beat back when forced to face rude driving. On the other hand, a little politeness goes a long way towards reducing the possibility of quarrelling and fighting. A friendly nod or a wave of thanks in answer to an act of politeness helps to create an atmosphere of good will and calmness so necessary in modern traffic conditions. But such behaviors of politeness are by no means enough. Many drivers nowadays don’t even seem able to recognize politeness when they see it.
However, misplaced politeness can also be dangerous. Typical examples are the driver who waves a child crossing the street at a wrong place into the path of oncoming cars that may be not able to stop in time. The same goes for encouraging old ladies to cross the road wherever and whenever they want to.
An experienced driver, whose manners are faultless, told me it would help if drivers learnt to correctly join in traffic stream without causing total blockages that give rise to unpleasant feelings. Unfortunately, modern drivers can’t even learn to drive,let alone master the roadmanship. Years ago, experts warned us that the fast increase of the car ownership would demand more give-and-take from all road users. It is high time for all of us to take this message to heart.

It is not always right for drivers to______.

A. master roadmanship
B. recognize politeness when they see it
C. encourage old ladies to cross the road whenever and wherever they want
D. give a friendly nod in answer to an act of politeness
查看答案
单项选择题

我国最早的诗歌总集是（）。

A.《诗经》

B.《楚辞》

C.《乐府诗集》

D.《离骚》
查看答案