搜题请搜索小程序“爱下问搜题”
问题 单项选择题

男，30岁。夜间突发肾绞痛，伴恶心、呕吐、血尿，疑为肾、输尿管结石。

为明确诊断并了解病肾功能情况，最好选用的辅助检查是

A．尿液检查 

B．B超检查 

C．泌尿系X线平片 

D．排泄性尿路造影 

E．逆行肾盂造影 

答案

参考答案：D

解析：D【解析】排泄性尿路造影可明确尿路梗阻并可了解肾功能。

单项选择题

Passage One


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.

The following statements are right EXCEPT that______.

A．some modern drivers are not good at driving

B．road politeness is good sense as well as good manners

C．it is also right to have a tiger in the driver’s seat

D．a friendly driver should nod or wave thanks in answer to an act of politeness
查看答案
问答题 简答题

定向进化的应用
查看答案