皮皮学，免费搜题
登录
搜题
【多选题】
( )下列哪些原因会造成开机电路故障?
A.
机电路中的门电路
B.
电源第14脚经过的三极管和二极管损坏
C.
南桥损坏
D.
南桥旁边的晶振或谐振电容损坏开
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【简答题】在Windows 98“我的电脑”窗H中，若已选定硬盘上的文件或文件夹，并按了Delete键和“确定”按钮，则该文件或文件夹将（ ）。
查看完整题目与答案
【单选题】According to the text, which of the following is eligible for a patent?
A.
The perpetual-motion machine.
B.
A solar-powered automobile.
C.
The 'one-click' online payment system.
D.
A words-memorizing approach.
查看完整题目与答案
【判断题】( )假设Rl=1.8,当执行取整运算指令R2=TRUNC(Rl)时,是将值2.0赋给变量R2。(SIEMENS系统)
A.
正确
B.
错误
查看完整题目与答案
【单选题】According to the passage, whether TV is good or mot depends on .
A.
its quality
B.
people’s attitude towards it
C.
how we use it
D.
when we use it
查看完整题目与答案
【单选题】—I’m terribly sorry about that. — ___
A.
You are welcome.
B.
Don’t give it another thought.
C.
Not at all.
D.
Excuse me.
查看完整题目与答案
【单选题】The single acting cylinder is the simplest form. where pressure is applied to the full area of the piston head to move the load through piston rod extensionThe load causes rod _____ when the drive pre...
A.
contraction
B.
retraction
C.
expansion
D.
shrinkage
查看完整题目与答案
【单选题】在执行了a+=a=5;之后,a的结果为( )。
A.
5
B.
10
C.
15
D.
20
查看完整题目与答案
【判断题】某丈夫希望窃听其妻子的上网行为,就在妻子使用的电脑键盘中,安装了一个小型发射器,将按键信息通过发射器发出,再通过接收器以及软件重现其妻子的按键信息。这种技术是否属于信息安全。()
A.
正确
B.
错误
查看完整题目与答案
【单选题】—I’m terribly sorry that I made your table cloth dirty! — .
A.
Don’t mention it
B.
Never mind
C.
That’s right
D.
That’s terrible
查看完整题目与答案
【单选题】Lodger: I’m terribly sorry that I broke you precious vase. I’ll pay for it. Landlady:____.
A.
Relax yourself
B.
Take care
C.
Can’t complain
D.
Never mind
查看完整题目与答案
相关题目：
【简答题】在Windows 98“我的电脑”窗H中，若已选定硬盘上的文件或文件夹，并按了Delete键和“确定”按钮，则该文件或文件夹将（ ）。
查看完整题目与答案
【单选题】According to the text, which of the following is eligible for a patent?
A.
The perpetual-motion machine.
B.
A solar-powered automobile.
C.
The 'one-click' online payment system.
D.
A words-memorizing approach.
查看完整题目与答案
【判断题】( )假设Rl=1.8,当执行取整运算指令R2=TRUNC(Rl)时,是将值2.0赋给变量R2。(SIEMENS系统)
A.
正确
B.
错误
查看完整题目与答案
【单选题】According to the passage, whether TV is good or mot depends on .
A.
its quality
B.
people’s attitude towards it
C.
how we use it
D.
when we use it
查看完整题目与答案
【单选题】—I’m terribly sorry about that. — ___
A.
You are welcome.
B.
Don’t give it another thought.
C.
Not at all.
D.
Excuse me.
查看完整题目与答案
【单选题】The single acting cylinder is the simplest form. where pressure is applied to the full area of the piston head to move the load through piston rod extensionThe load causes rod _____ when the drive pre...
A.
contraction
B.
retraction
C.
expansion
D.
shrinkage
查看完整题目与答案
【单选题】在执行了a+=a=5;之后,a的结果为( )。
A.
5
B.
10
C.
15
D.
20
查看完整题目与答案
【判断题】某丈夫希望窃听其妻子的上网行为,就在妻子使用的电脑键盘中,安装了一个小型发射器,将按键信息通过发射器发出,再通过接收器以及软件重现其妻子的按键信息。这种技术是否属于信息安全。()
A.
正确
B.
错误
查看完整题目与答案
【单选题】—I’m terribly sorry that I made your table cloth dirty! — .
A.
Don’t mention it
B.
Never mind
C.
That’s right
D.
That’s terrible
查看完整题目与答案
【单选题】Lodger: I’m terribly sorry that I broke you precious vase. I’ll pay for it. Landlady:____.
A.
Relax yourself
B.
Take care
C.
Can’t complain
D.
Never mind
查看完整题目与答案