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【多选题】
下面关于GPON技术的描述，正确的是（）
A.
上行数据流采用TDMA技术
B.
下行数据流采用广播技术
C.
GPON系统采用WDM技术，实现双纤双向传输.
D.
PON由光线路终端OLT、光网络单元ONU和无源分光器POS组成
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【单选题】下列关于图层的描述正确的是()
A.
背景图层不能转换为其他类型的图层
B.
在图层调板上背景图层是不能上下移动的，只能是最下面一层
C.
背景图层不可以执行滤镜效果
D.
背景图层可以设置图层蒙版
查看完整题目与答案
【单选题】Which one is the merit of the computer?
A.
It leads to an unhealthy and sedentary lifestyl.
B.
Staring at a computer for many hours causes eye strain or headaches.
C.
The reduction of face-to-face interaction causes social isolation.
D.
It helps us find information quickly, easily,effectively and efficiently.
查看完整题目与答案
【多选题】下面关于蒙版的描述哪个是正确的?
A.
快速蒙版的作用主要是进行选区的修饰
B.
图层蒙版和图层剪切路径是不同类型的蒙版，他们之间是无法转换的
C.
图层蒙版可转化为浮动的选择区域
D.
当创建蒙版时，在通道调板中可看到临时的和蒙版相对应的Alpha通道
查看完整题目与答案
【多选题】Which one is the merit of the computer?
A.
keep in touch with our friends and family members through video chat.
B.
efficiently find the information through search engine.
C.
teachers can utilize online resources to make a supplement to their teaching contents.
D.
the employees have more freedom, and more flexible work schedules.
查看完整题目与答案
【单选题】Which one is the merit of the computer?
A.
It leads to an unhealthy and sedentary lifestyle
B.
Staring at a computer for many hours causes eye strain or headaches.
C.
The reduction of face-to-face interaction causes social isolation.
D.
It helps us find information quickly, easily,effectively and efficiently .
查看完整题目与答案
【多选题】Which one is the merit of the computer?
A.
keep in touch with our friends and family members through video chat.
B.
efficiently find the information through search engine
C.
teachers can utilize online resources to make a supplement to their teaching contents
D.
Dthe employees have more freedom, and more flexible work schedules.
查看完整题目与答案
【单选题】What does the author mean by 'the one that does merit belief' (Line , Para. 3)?
A.
It is the most desperate one.
B.
It is the most believable one.
C.
It is the most profitable one.
D.
It is the most valuable one.
查看完整题目与答案
【多选题】Which one is the merit of the computer?
A.
Teachers can utilize online resources to make a supplement to their teaching contents.
B.
Efficiently find the information through search engine.
C.
The employees have more freedom, and more flexible work schedules.
D.
Keep in touch with our friends and family members through video chat.
查看完整题目与答案
【单选题】主机 IP 地址为: 138.0.254.254 的机器中,代表网络标识的数字是?
A.
138
B.
138.0.254
C.
138.0
D.
138.0.254.254
查看完整题目与答案
【多选题】AutoCAD执行指令的方式有哪几种？
A.
绘图菜单
B.
绘图工具栏
C.
屏幕菜单
D.
绘图命令
查看完整题目与答案
相关题目：
【单选题】下列关于图层的描述正确的是()
A.
背景图层不能转换为其他类型的图层
B.
在图层调板上背景图层是不能上下移动的，只能是最下面一层
C.
背景图层不可以执行滤镜效果
D.
背景图层可以设置图层蒙版
查看完整题目与答案
【单选题】Which one is the merit of the computer?
A.
It leads to an unhealthy and sedentary lifestyl.
B.
Staring at a computer for many hours causes eye strain or headaches.
C.
The reduction of face-to-face interaction causes social isolation.
D.
It helps us find information quickly, easily,effectively and efficiently.
查看完整题目与答案
【多选题】下面关于蒙版的描述哪个是正确的?
A.
快速蒙版的作用主要是进行选区的修饰
B.
图层蒙版和图层剪切路径是不同类型的蒙版，他们之间是无法转换的
C.
图层蒙版可转化为浮动的选择区域
D.
当创建蒙版时，在通道调板中可看到临时的和蒙版相对应的Alpha通道
查看完整题目与答案
【多选题】Which one is the merit of the computer?
A.
keep in touch with our friends and family members through video chat.
B.
efficiently find the information through search engine.
C.
teachers can utilize online resources to make a supplement to their teaching contents.
D.
the employees have more freedom, and more flexible work schedules.
查看完整题目与答案
【单选题】Which one is the merit of the computer?
A.
It leads to an unhealthy and sedentary lifestyle
B.
Staring at a computer for many hours causes eye strain or headaches.
C.
The reduction of face-to-face interaction causes social isolation.
D.
It helps us find information quickly, easily,effectively and efficiently .
查看完整题目与答案
【多选题】Which one is the merit of the computer?
A.
keep in touch with our friends and family members through video chat.
B.
efficiently find the information through search engine
C.
teachers can utilize online resources to make a supplement to their teaching contents
D.
Dthe employees have more freedom, and more flexible work schedules.
查看完整题目与答案
【单选题】What does the author mean by 'the one that does merit belief' (Line , Para. 3)?
A.
It is the most desperate one.
B.
It is the most believable one.
C.
It is the most profitable one.
D.
It is the most valuable one.
查看完整题目与答案
【多选题】Which one is the merit of the computer?
A.
Teachers can utilize online resources to make a supplement to their teaching contents.
B.
Efficiently find the information through search engine.
C.
The employees have more freedom, and more flexible work schedules.
D.
Keep in touch with our friends and family members through video chat.
查看完整题目与答案
【单选题】主机 IP 地址为: 138.0.254.254 的机器中,代表网络标识的数字是?
A.
138
B.
138.0.254
C.
138.0
D.
138.0.254.254
查看完整题目与答案
【多选题】AutoCAD执行指令的方式有哪几种？
A.
绘图菜单
B.
绘图工具栏
C.
屏幕菜单
D.
绘图命令
查看完整题目与答案