蓝细菌原称蓝藻或蓝绿藻(blue- green algae)。因为它与高等绿色植物和高等藻类一样, 含有光合色素——叶绿素a,也能进行产氧型光合作用,所以,过去将其归于藻类。现代技 术研究表明,蓝细菌的细胞核没有核膜,没有有丝分裂器,没有叶绿体,核糖体为70S,细 胞壁与细菌的相似,由肽聚糖构成,因而对青霉素和溶菌酶敏感,并含二氨基庚二酸,革 兰氏染色反应阴性,因此现在将蓝细菌归属于原核微生物 蓝细菌分布极广,从热带到两极,从海洋到高山,到处都有它们的踪影

优良的微生物菌种是发酵工业的基础和关键要使发酵工业产品的种类、产量和质量有较大的改善,首先必须选育性能优良的生产菌种。理想的工业发酵菌种应符合以下要求: (1)遗传性状稳定; (2)生长速度快,不易被噬菌体等污染 (3)目标产物的产量尽可能接近理论转化率; (4)目标产物最好能分泌到胞外,以降低产物抑制并利于产物分离

1.什么是企业人力资源规划? 2.有哪三种途径能够促使人力资源计规划有效地提高公司的竞争优势? 3.为什么所有的管理者都应当关注人力资源管理?

Textbook Data structure, algorithms, and applications in C++, Sartaj Sahmi 数据结构(用面向对象方法与C++描述),殷人昆等

11.1 Binary Search Trees 1.Definition: A binary search tree is a binary tree that may be empty. nonempty binary search tree satisfies the following properties: 1)Every element has a key and no two elements have the same key: therefore,all keys are distinct

Two kinds of data structure Linear: list, stack, queue, string Non-linear: tree, graph

6.1 Definition Definition: A queue is a linear list in which additions and deletions take place at different ends. It is also called a first-in-first-out list. The end at which new elements are added is called the rear. The end from which old elements are deleted is called the front

4.1 1D-Array 1. One-dimensional array 1D-array is a limited sequence composed of n (n20) elements which are of the same data type. For example:

2.1 Preface Performance of a program: the amount of computer memory and time needed to run a program We use two approaches to determine it: performance analysis performance measurement

一、斯托克斯(Stokes)公式 二、简单应用 三、环流量与旋度 四、小结