广州工程技术职业学院
机电工程（系）院 （2014—2015学年 第一学期） 《电子技术专业英语》期末考试试卷 B 卷共4页 2014年12月 考试形式：□开卷 √闭卷 考试时间：120分钟
I. Multiplechoice(20’)
1. The sixth power of two is .
A. 12
B. 36
C. 64
2. Electrons, as one knows, are minute charge of electricity.
A. negative
B. positive
C. reverse
3. A resistor is an electrical component that the flow of electrical current.
A. increases
B. resists
C. changes
4. “The current is directly proportional to the voltages across it.” These can be described by formula _______.
A. I=u/R
B. p=u*I
C. I=q/t
5. The algebraic sum of the ________ entering any node is zero.
A. current
B. reactance
C. voltage
6. The conductivity of semiconductors is ______ than that of insulator but ________ than that of conductors.
A. lower…lower
B. lower…higher
C. higher….lower
7. For a 4-band resistor with “color code ”, the first band is the values.
A. hundreds
B. tens
C. ten
8. An electronic device often used for amplifying voltage and current is _____________.
A. diode
B. conductor
C. transistor
9. In a diode, current flows in ________ direction across the junction.
A. only one
B. two
C. three
班级___________ 姓名___________ 学号_____________
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10. A __________ amplifier provides signal amplification with little or no distortion, so that the output is proportional to the input.
A. nonlinear
B. linear
C. electronic
II. Match up(20’)
1.模拟电子技术（）
2.直流电路（）
3.电子元件（）
4.机械调节（）
5.外阻（）
6.放大器（）
7.脉冲直流（）
8.电压源（）
9.系统设计（）10.逻辑运算（）
（1）internal resistance （2）pulsating DC （3）voltage sources
（4）logic circuits （5）analog electronics （6）logic operation
（7）external resistance （8）number systems （9）direct current circuits （10）amplifier （11）mechanical adjust （12）digital logic circuits
（13）system design （14）anode of diode （15）electrical components
III. phrase translation(20’)
1. Passive electrical circuits
2. Assembler language
3. Specific meters
4. Analog multimeter
5. Semiconductor material
6. Forward biased
7. peak-to-peak voltage
8. under this circumstance
9. demodulating equipment
10. Ohm's law
IV. Sentence tranlation(20’)
1. The amount of current (I) flowing in a resistor is directly proportional to the voltage across it and inversely proportional to the resistance of the resistor.
2. A multimeter is a general-purpose meter capable of measuring DC and AC voltage, current, resistance, and in some cases, decibels.
3. The motherboard is the main circuit board inside the PC which holds the processor, memory and expansion slots and connects directly or indirectly to every part of the PC（Fig 9.1）.
4. Moore's law, which predicted that the number of devices integrated on a chip would be doubled every two years, was accurate for a number of years.
V. put the following into english(20’)
C is commonly considered to be a structured language with some similarities to Pascal. In C, a block of code is a logically connected group of program statements that can be treated as a unit. You can create a block of code by placing lines of code between opening and closing curly braces. For example:
if(x<10)
{
printf (“too low, try again”);
reset_counter(-1);
}
The two statements after "if" that are between the curly braces are executed if x is less than 10. These two statements with the braces represent a block of code. They are linked together: one of the statements cannot execute without the other also executing.。