三、阅读以下文字，回答下面5个小题。 　　电阻现象源于原子间的摩擦，导致用来驱动电动

一些运动员，由于比赛时过于紧张，比赛时成绩还不如平时的训练成绩，一些平时成绩不错的同学由于考试怯场，考试成绩不理想，这说明 [     ]

A．消极的情绪影响人的正常水平的发挥。

B．人的情绪多种多样，千姿百态。

C．运动员和学习好的同学都会产生消极的情绪。

D．情绪对人的行为只有消极影响。

打印机驱动程序是运行或“驱动”打印机的( )。

A．硬件

B．软件

C．备份

D．插件

长沙市的食品药品监督管理部门负责食品流通环节还是餐饮消费环节的监督管理？

We know a computer is a machine that processes data (stored in main memory) into information, under control of a stored program. We also know that, internally, a computer is a binary machine; thus the data and the program instruictions must be stored in binary form. Characters are represented in (71) . Numbers are stored as binary numbers, with each bit’s positional value significant. A computer’s main memory is divided into bytes, words or both (depending on the system), and each of these basic storage units is assigned an (72) . Using this address, the processor can read or write selected bytes or words.

The processor consists of a clock, an instruction control unit, an arithmetic and logic unit, and registers. Once a program is stored in main memory, the processor can begin to execute it. During (73) , the instruction control unit fetches an instruction from main memory; during (74) , the arithmetic and logic unit executes it. Precisely timed electronic pulses generated by the clock drive this basic (75)

（72）处填（）。

A．address

B．value

C．content

D．register

公关人员应具备的心理素质（）

A.封闭心理

B.自信心理

C.开放心理

D.热情心理

E.豪放心理