试题与答案

以下哪些菌可在血琼脂平板上呈现迁徙性生长 () A.黏质沙雷菌 B.肺炎克雷伯杆菌

题型:单项选择题 A1/A2型题

题目:

以下哪些菌可在血琼脂平板上呈现迁徙性生长 ()

A.黏质沙雷菌

B.肺炎克雷伯杆菌

C.奇异变形杆菌

D.大肠埃希菌

E.福氏志贺菌

答案:

参考答案:C

解析:在营养琼脂和血琼脂平板上普通变形杆菌和奇异变形杆菌的大多数菌株呈迁徙扩散生长现象,即迅速形成波纹状薄膜而布满整个平板培养基表面。

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       卫鞅曰:“治世不一道,便国不法古。故汤武不循古而王,夏殷不易礼而亡。反古者不可非,而循礼者不足多。”孝公曰:“善。”以卫鞅为左庶长,卒定变法令。                       ——摘自《史记》 

请回答: 

①文中的“卫鞅”指的是谁?

                                                                                                                                                            

②文中反映了卫鞅的什么主张?

                                                                                                                                                            

③ 卫鞅的文论代表哪个阶级?    

                                                                                                                                                            

④卫鞅有何重大作为?结果怎样?

                                                                                                                                                            

                                                                                                                                                            

                                                                                                                                                             

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