搜题请搜索小程序“爱下问搜题”
问题 单项选择题 案例分析题

患者女性，29岁，多尿、骨痛、双下肢无力1年，加重10天，查体：血压160／118mmHg，心律不齐，心率107次／分，可闻及期前收缩7～9次／分，尿常规蛋白（+），白细胞1～4个／HP，红细胞0～4个／HP，血K2．97，血pH7．25，血Cr309μmol／L，B超示双肾大小正常，双肾可见结石，心电图：窦性心率，频发室性期前收缩，ST-T改变

相关检查结果回报：血C1130mmol／L，血钙0．59mmol／L，晨尿pH7．0，初步诊断为肾小管性酸中毒Ⅰ型，确诊应选择的检查是（）

A.U-PCO2试验

B.NaHCO3再吸收试验

C.肾素血管紧张素醛固酮测定

D.肾脏放射性核素检查

E.肾小球滤过率测定

答案

参考答案：A

多项选择题

产气荚膜梭菌的致病物质包括（）

A.外毒素

B.内毒素

C.荚膜

D.菌毛

E.侵袭性酶
查看答案
单项选择题

Routing protocols use different techniques for assigning ______ to individual networks. Further, each routing protocol forms a metric aggregation in a different way. Most routing protocols can use multiple paths if the paths have an equal ______ . Some routing protocols can even use multiple paths when paths have an unequal cost. In either case, load ______ can improve overall allocation of network bandwidth. When multiple paths are used, there are several ways to distribute the packets. The two most common mechanisms are per-packet load balancing and per-destination load balancing. Per-packet load balancing distributes the ______ across the possible routes in a manner proportional to the route metrics. Per-destination load balancing distributes packets across the possible routes based on ______.

A. efficiency B. metrics C. utilization D. links
查看答案