设备诊断的基本技术主要包括（）、（）、（）和（）。

简述在土壤学形成，发展历史上比较有影响的三个学派。

第二节：完形填空(共20小题；每小题1分，满分20分)

阅读下面短文，掌握其大意，然后从36～55各题所给的四个选项(A、B、c和D)中选出最佳选项，并在答题卡上将该项涂黑。

I moved to this small town at the age of twelve．After getting  36   in our new house and starting school，I began to explore the   37  area．I was exploring the pond when I discovered the fish．

There were two of them，one about a foot long，  38  the other just a little smaller，and they were the most beautiful fish I had  39  seen．They had blue and yellow and red  40  from head to tail．Before they saw me，they swam  41  over the sand just under the front edge of the large cedar(杉)tree which had long before fallen  42   the pond．

I went back the next day after school  43   with about six feet of fishing line and a hook borrowed from our elderly neighbor．and half a dozen worms I had   44  out of the garden．We did not own any fishing tool，and   45  a city kid，my fishing experience, had  46  week long visits to my relatives．

I took a shortcut  47  some fallen cedars on my way to the pond．As I was climbing over one tree and ducking under another，I  _48  my footing，and my soup can of worms went flying into the air．My  49   was only increased when I noticed that my worms had disappeared．

I went to the pond，looked down again，and there they were．I made a few  50   to catch them by hand，but I soon realized it was never going to  51 ．I had been trying to catch them for quite a while without actually even  52   either one．After each attempt，they   53  suddenly go around the pool，then settle back under the log．They could really go  54 ，but they were just too fast to be caught．I was wet and   55   and it was time to go home．

36．A．seated          B．settled         C．separated                D．served

37．A．deserted       B．crowded      C．surrounding            D．distant

38．A．but              B．and             C．thus                       D．so

39．A．hardly         B．seldom        C．never                     D．ever

40．A．dots            B．signs           C．signals                   D．symbols

41．A．nervously    B．hopelessly     C．effortlessly             D．difficultly

42．A．through       B．across          C．past                    D．by

43．A．armed         B．matched       C．handled                  D．accompanied

44．A．put              B．dug             C．pulled                    D．searched

45．A．for              B．with            C．as                          D．despite

46．A．consisted of  B．compared with  C．made up                D．taken up

47．A．beyond        B．against         C．between                 D．through

48．A．lost             B．sank                   C．sent                D. threw

49．A．doubt          B．disappointment    C．courage           D. strength

50．A．steps           B．activities             C．attempts          D. movement

51．A．work           B．complete             C．cover              D. catch

52．A．noticing               B．touching             C．holding           D. feeling

53．A．should          B．might                 C．would             D. could

54．A．somewhere    B．anywhere           C．nowhere          D. everywhere

55．A．excited        B．frightened           C．worried           D. discouraged

应用抗癫痫药物需要注意的问题（）

A.根据发作类型选药

B.通常采用单药治疗

C.注意药物不良反应

D.坚持长期服药，不宜突然减量或停药

E.采用个体化药物剂量

鼻粘膜和齿龈出血

A．肾上腺素
B．麻黄碱
C．多巴胺
D．去甲肾上腺素
E．多巴酚丁胺

图10为我国北方处于稳定状态的某森林生态系统碳循环示意图，图中A、B、C、D分别代表生态系统的成分，①～⑦代表碳元素的传递过程。请据图回答：

森林生态系统的营养结构比较复杂，决定了其（）稳定性较强。